測地平行線 的英文怎麼說

中文拼音 [depínghángxiàn]
測地平行線 英文
geodesic parallel
  • : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
  • : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
  • : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化區的物特徵,對高光譜數據不同波段的數據質量、波段組合進了評價,提出了適用於荒漠化監的基本波段選擇集;初步了解和掌握了研究區的物光譜特性及變異規律,進一步明確了掌握物光譜特徵和變異規律是用成像光譜儀數據提取物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、物目標觀方向之間的角度變化引起的反射率曲整體移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進荒漠化監的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進植被生物量和蓋度定量反演的有力工具;建立了荒漠化監主要評價因子的定量反演模型,並分析了模型的適用性。
  2. So far, the main frame of the conjugation of betrand are established, on the basis of which, it is given that the primary condition the directrix line must be satisfied, the relative curvature of the conjugating surfaces, the relations between non - interventional condition and curvature axle of the directrix line, and so on. the transmission of normal circular - arc gear is a typical bertrand conjugation. in order to promote the transformation from theory to technology, the general principle of this kind of transmission is studied

    為了使研究更加貼近於工程,便於解析處理,提出準面的概念,並確立由準面到準的研究路,給出了各種傳動形式下準面與準的具體特徵,證明了共軛準面上兩準的誘導曲率等於零的這一不干涉條件,進而指出,當準面為軸和相交軸傳動的節曲面時,不干涉條件自然滿足。
  3. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,定了柱架的抗側移剛度、柱架恢復力特性及滯回曲、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回曲,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,定了殿堂木構架結構自振周期,震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的震反應採用多點同步量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進了定量分析。
  4. Parameters can be interpreted through the method used in straight wells. after logging curves in horizontal wells are revised to true vertical depth, oil - bearing formation is evaluated through the comparison of wells combined with geological information. logging while drilling have great difference with ordinary cable logging especially in deviated holes and horizontal wells. comparison of cable logging and lwd carried out in different time indicates characters of mud invasion

    實際解釋lwd資料時首先需對隨鉆井資料進預處理和標準化,然後從隨鉆井、錄井資料中提取與巖性密切相關的參數,建立井相-巖相統計模式,並採用灰色關聯識別方法實時判別層巖性;採用直井的參數解釋方法進隨鉆層參數解釋;將水井的隨鉆井曲從實際井深校正到垂直井深上,通過隨鉆井資料與鄰井井資料的對比解釋,並結合質、錄井資料進隨鉆層含油氣性評價。
  5. Taking xinzhou city as the case, the paper analyzes the city ' s actual situation of water supply, available water sources and their amount, distribution and development. it also calculates the mid and long term needed water amount and insufficient water amount in the city. taking the natural, commercial and life material properties and environmental function of water sources into full consideration, taking the satisfaction of the needed amount of the city and the balance and the largest capacity of every water source as the prerequisite, the paper aims at the mid and long term water supply sources ( north water sources region, douluo water sources region, shuiquanwan water sources region ) and the lest spending on the investment and operation of the self - equipped wells ; through the determination of decision variables, a model of economic management for the city ' s water supply is established, witch carries out the mid and long te rm optimal operation of water supply for the city

    本文以忻州市為例,分析了忻州市供水現狀,可供水水源、水資源量、分佈及開發利用情況,預了中長期需水量和缺水量,充分考慮水資源的自然屬性、生活資料屬性、商品屬性和環境因素功能,通過決策變量設置,在保證城市需水量、水資源衡和各供水水源最大供水能力的前提下,以開采忻州市中長期供水水源(北水源、豆羅水源、水泉灣水源)和自備井開採的投資和運費用最低為目標,建立了城市供水水源優化調度經濟管理模型,運用性規劃方法進了城市中長期供水水源優化調配。
  6. To this area precipitation materials for many years, evaporate materials, surface flow materials, hydrometeorological materials, hydrogeological materials carry on exhaustive analysis, have analysed the state of water resource of the sand district, proceed from the heat of the earth ' s surface is balanced, water yield balanced basic theories, combine the amount of regional water resource set up of the materials, such as scene, hydrology, soil of the sand district, etc. and estimate models, have calculated the surface water, groundwater of this area, has carried on models to examine according to the real data, and has predicted to the state of water resource under different climate change scenes of future that analyse. have put forward the scheme that the water resource in this area utilized rationally, use the non - linear motive force model to predict the precipitation, utilize the materials of actual observation, the natural supply amount of calculating out groundwater of sand ground of balanced principle of the amount of water used at the same time, and can exploiting amount predict to groundwater, district of sand,

    本文以寧夏半乾旱區鹽池縣沙水資源為研究對象,對該區多年降水資料、蒸發資料、徑流資料、水文氣象資料、水文質資料進了詳盡的分析,分析了沙區的水資源狀況,從表熱量衡、水量衡的基本理論出發,結合沙區的氣象、水文、土壤等資料建立了區域水資源量估算模型,計算了該區的表水、下水,根據實際資料進了模型檢驗,並對未來不同氣候變化情景下的水資源狀況進了預分析,提出了該區水資源合理利用的方案,運用非性動力模型對降水量進,同時利用實際觀資料,運用水量衡原理計算出沙下水的天然補給量,並對沙區下水可開采量進
  7. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點,將漫灘水流的復式斷面分為主槽衡區、灘槽交互區、灘衡區及邊壁區等4個區,並給出了各區寬度的經驗公式.根據灘槽交互區垂流速分佈的變化特點,提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上,對灘槽交互區內垂均流速及含沙量沿橫向分佈進了理論分析,提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式,得到了漫灘水流垂均流速及含沙量沿橫向分佈的解析解,並與實資料吻合較好
  8. In addition, the paper designs a bottom database model, selects a multi - aim strategy combining files with known data, and establishes dual interaction data model that has explicit conceptual structure and directly aims to geographic objects, and provides backing up enquiry language ( g - sql ). simultaneously, after analyzing and studying methods available for the under pipelines, the paper constructs survey adjustment calculation model, and according to the model, checks the survey of under pipelines. the results indicate that the model is suitable to actual requirement because it greatly increase calculation speed, meeting calculation accuracy requirement

    在此基礎上,對系統的底層數據模型進設計,選擇了文件與成熟數據庫相結合的混合策略,併兼顧面向對象的數據庫( oodb )和可擴充數據庫( edb )的特點,建立了一個概念層次清晰、面向理對象實體的雙層語義數據模型以及支持模型的查詢語言g - sql ,同時對下管的各種試方法進分析研究,建立了下管差計算模型,並以此對所勘下管核算,計算結果表明,計算模型不僅大大提高了核算的速度,同時在計算精度上也符合核算的要求,是符合實際要求的關于差計算的模型。
  9. On the basis of analysis and comparison between two drills, one in the center of bohai sea, another near the west shore of bohai sea, ultra - long electromagnetic wave remote sensing can be applied to forecast the interfaces between the different rocks, and help to choose the location of drill and drilling plan. the ultra - long electromagnetic remote sensing also can be applied to general investigation in the prospecting area and organizing the structural map on the basis of the profiles and plane. based on the analysis of the ultra - long electromagnetic wave curves from tanggu to dalian, the geological body to effect the high gravity and magnetic anomalies could be a mafic intrusion. the magma activity provided the heat source to organic maturation in the center of bohai sea, so the center of bohai sea could be the prospection of deep gas in bohai sea

    根據渤海西岸和渤海中部兩口探井的探和對比實驗分析,利用超長電磁波遙技術可以根據已知探井的探對比分析預新探井的巖性界面,協助井位的選址和設計。另外,利用超長電磁波的探技術可以從剖面和面上對遠景區進普查性探,編制遠景區的構造圖。根據塘沽-大連探的超長電磁波頻譜曲剖面對比分析,證實引起渤海中部重磁異常高的質體可能是基性超基性巖體。
  10. Application of the algorithm for different observed head data sets indicate that the model can be successfully applied for aquifer systems where data available may be sparse and with errors. calculated groundwater heads by identification results in fourteen parameter areas are fit for observed heads in field, and flowing filed is similar. the study demonstrates the effectiveness of the ga global optimization model for parameter identification, which is an important step towards real system simulation and effective planning and management of groundwater resources

    通過算例研究,表明上述演算法可,且rbf神經網路方法和退火遺傳演算法對下水系統參數的識別效果都較好,而退火遺傳演算法較之標準的遺傳演算法具有更好的收斂性將演算法應用到北京市密懷順區,在收集、分析研究區資料基礎上,建立了北京市密懷順原區下水模擬模型,並用遺傳演算法進下水系統參數識別,在十四個分區情況下,計算水位與實際水位擬合的較好,各應力期末的計算與實等水位基本一致,表明該識別值較為合理。
  11. According to the geological data which was gained by exploration investigation, establishing a geological model which can reflect rock mass characteristics ; with analyzing the internal and exterior factors synthetically, the deformation and possible failure mechanism and mode of the cut slopes was confirmed which combines with stereoic projection and other techniques ; the stabilities of the 14 high slopes are estimated synthetically by applicable design codes and guidelines. with the estimate result and some other analysis methods, the rock mass mechanical parameters of slope are identified ; as a results, 14 high slopes fall into 4 categories based on rockmass characteristics and discontinuities. the stability and deformation of some typical slopes was analyzed with distinct element method by udec ; the safety factor of some dangerous slopes are calculated by rigid limiting equilibrium method for comparison

    首先著重研究影響邊坡穩定性的內在因素,主要是通過質勘探、量、現場觀等手段取得研究區質體的基礎質資料,建立起能夠反映質體結構特徵的質模型;隨后綜合分析潛在的內外部影響因素,並結合赤投影對邊坡可能的失穩模式或破壞機製作出判斷;運用已有巖體質量分類方法對沿14個高陡邊坡穩定性進初步的評價,並結合試驗研究、經驗判斷、工程類比等手段確定了坡體的巖體力學參數;根據穩定性初步評價結果將研究區14個高陡邊坡按開挖方式分為4大類,並利用離散元程序udec對各類典型高陡邊坡進了穩定性計算分析;對潛在危險邊坡利用剛體極限衡法求出了不同工況下的安全系數。
  12. The combustion - optimizing and automatic control system is being adopted on boiler no. 2 in jiaozuo power plant, successfully realizing the combustion optimizing control of said boiler under constant load and varying load conditions, the on - line combustion debugging test, and the monitoring analysis of operation economic behavior, making the said boiler always to be safe operation with highest efficiency, enhancing averagely the boiler efficiency to more than 0. 5 %, economic benefit being obvious

    摘要焦作電廠2號爐採用燃燒優化與自動控制系統,成功實現了鍋爐定負荷和變負荷過程的燃燒優化控制、鍋爐在燃燒調整試驗和運經濟監分析,使鍋爐時刻在最高效率下安全運,鍋爐效率均提高0 . 5 %以上,經濟效益顯著。
  13. ( 5 ) mfpic ( matched field postbeamformer interference canceller ) is proposed to cancel tow ship ' s noise. the advantage of mfpic is that it can be used to cancel the tow ship ' s noise for all arrival directions. furthermore, this new approach can be used to detect weak target, which has the same bearing angle of a strong interference

    ( 5 )將面波波束形成后干擾抵消與匹配場處理技術進有機結合,探索性提出了拖陣聲納本艦干擾的匹配場抵消方法和匹配場處理后的干擾抵消方法,為本艦多途干擾抵消、水面強干擾抑制和水下弱目標檢提供了新的技術途徑。
  14. Although there have been many application instances in the field of input / output device technology, we need an specific project and technology route aimed at an given application. in this thesis, we combine the introduction and analysis of relative technology to describe the accomplishment of a coordinate collecting device which is based on incremental rotary encoder. this device is an specific device applied to collect the corrdinate displacement of ground image ’ s three - dimensional model created by full digital photogrammetric station. cpld chip and vhdl are applied in this device to carry out the following work : phase control of the electrical pulse created by incremental rotary encoder, counting the number of electrical pulse, controling the state of signal processing circuit, exchanging data between this circuit and pci control

    本文結合相關技術的介紹和分析,描述了一個基於增量式旋轉編碼器的坐標參量採集介面卡的實現,此介面卡是一種用於採集全數字攝影量系統面影像模型坐標位移量的專用設備,該設備採用cpld器件和vhdl語言實現增量式旋轉編碼器的脈沖信號鑒相和計數、信號處理部分的狀態控制以及和pci總晶元ch365之間的數據交換和通信功能,同時該設備的驅動程序基於wdm模式,並且配置有結構良好的動態鏈接庫程序作為系統軟體和驅動程序之間的數據和控制交互中間介面,能夠方便在windows98 / 2000 / xp操作系統臺上,具有實時性強、工作穩定、通用性較好和性價比高等特點。
  15. During my master " degree investigation, i mainly focused on the coarse - grain stratigraphy within mesozoic basins in chengde and pingquan districts, the eastern yanshan, and did systemic provenance analysis and paleo - current direction measurement and studied the relationship among basin evolution, volcanism and tectonism. then i summarized the mesozoic basin development and the coupling characters of basin and mountain. the evolution of basin and mountain in this area can be divided into several stages : the stage of compression uplift and flexural basin during the triassic through the early jurassic, the stage of structural compression - volcanism and foreland basin during the middle and late jurassic and the stage of rift basin in the cretaceous

    在野外典型路調查的基礎上,對燕山區東段承德、區的中生代盆中發育的粗碎屑沉積層,進了系統的物源分析與古流定,並在此基礎上重點剖析了盆的發育、火山活動、構造變動三者之間的關系,總結了本區中生代盆發育規律及盆山耦合特徵,並將盆山演化劃分為:三疊紀?早侏羅紀的構造擠壓隆升與撓曲盆發育階段階段,中晚侏羅紀的構造擠壓?火山活動與類前陸盆發育階段,早白堊世的拉張斷陷盆發育階段。
  16. The 301 - 330bp hypervariable ii - control - region sequence in mitochondrial ( mt ) dna genome from 18 individuals of one subspecies of great bustard ( o. t. dybowskii ) from breeding areas of northwest of songliao plain, southwest of hulunbeier plateau and wintering area of shandong yellow river nature reserve in china were sequenced and population analysis was conducted to assess the level of genetic diversity

    本文採集了中國境內松遼原西北部繁殖、呼倫貝爾高原西南部繁殖及山東黃河三角洲自然保護區等區大鴇東方亞種( o . tdybowskii ) 18個個體,對粒體dna控制區高變區的部分序列進定和群體分析,以評價當前中國境內的東方亞種的遺傳多樣性水
  17. The automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation

    浮選自動化在我國多年來徘徊不前,一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法,而不直接以產品的數質量指標作為控制目標,導致浮選生產效率較低.針對上述問題,研究了浮選工藝參數的檢方法,開發了浮選漿位儀和煤漿灰儀,設計了浮選計算機控制系統,它根據煤漿灰儀旁的精煤灰分,運用模糊控制技術,通過調整浮選藥劑添加量和浮選機漿位,來實現浮選過程的反饋控制.工業性試驗表明,煤漿灰儀的性能指標接近國外先進水.煤泥浮選控系統在淮北選煤廠的現場使用,使浮選生產在精煤灰分合格的前提下,得到了較高的產率,並降低了藥劑用量,從而保證選煤廠高效率
  18. Abstract : the automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation

    文摘:浮選自動化在我國多年來徘徊不前,一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法,而不直接以產品的數質量指標作為控制目標,導致浮選生產效率較低.針對上述問題,研究了浮選工藝參數的檢方法,開發了浮選漿位儀和煤漿灰儀,設計了浮選計算機控制系統,它根據煤漿灰儀旁的精煤灰分,運用模糊控制技術,通過調整浮選藥劑添加量和浮選機漿位,來實現浮選過程的反饋控制.工業性試驗表明,煤漿灰儀的性能指標接近國外先進水.煤泥浮選控系統在淮北選煤廠的現場使用,使浮選生產在精煤灰分合格的前提下,得到了較高的產率,並降低了藥劑用量,從而保證選煤廠高效率
  19. Ate plays a more and more important role in the test and repair of aircraft avionics, and can considerably improve servicing quality and efficiency. our task is to develop a new type of ate used to test six kinds of aircraft avionics instruments located in the cockpit. it should be able to fulfill the test of all functions and performances of each instruments according to it ’ s component maintenance manual

    本文研究一種新的航空儀表自動試設備,能對六種分佈於駕艙內的指示型航空電子儀表?空速馬赫數指示器、電動氣壓高度表、無電距離磁指示器、儀、姿態指示儀、水位置指示儀進,完成維修手冊所規定的全部功能、性能方面的綜合試。
  20. Now days, with the further improvement of dependability requires to transformer substation in electric power system, the level of on - line inspection to dc system must be strengthened to meet the request of more dependability to dc system. the content about the inspection of dc system of substation is researched in this paper, including the study of on - line inspection to storage cells and the study of earthing fault lookup. in the aspect of inspection to cells, the inspection to cells is discussed on foundation of analysing in several pieces of measuring amount to the battery

    近年來,隨著電力系統對變電站運可靠性要求的進一步提高,為滿足大型變電站對更高可靠性直流系統的要求,就需加強對直流系統在。本文主要討論了變電站直流系統監控方面的內容,包括了蓄電池組的在的研究和接故障選裝置的研究兩個方面。在蓄電池的檢方面,在對蓄電池的幾個檢量分析的基礎上,針對內阻的檢做了詳細的討論,並結合原有方法的缺陷提出了自己的改進方法。
分享友人