連續本底 的英文怎麼說

中文拼音 [liánběnde]
連續本底 英文
continuous background
  • : Ⅰ動詞1 (連接) link; join; connect 2 (連累) involve (in trouble); implicate 3 [方言] (縫) ...
  • : Ⅰ形容詞(連接不斷) continuous; successive Ⅱ動詞1 (接在原有的后頭) continue; extend; join 2 (...
  • : i 名詞1 (草木的莖或根)stem or root of plants 2 (事物的根源)foundation; origin; basis 3 (本錢...
  • : 底助詞(用在定語后, 表示定語和中心詞之間是領屬關系, 現在多寫作「的」)
  • 連續 : continuation; succession; series; continuity; continuing; running; continuous; successive; contin...
  1. This drilling adopts crank connecting link and walking beam percussion mechanism, which make the drilling possess two percussive functions, normal drilling takes connecting link impact as main mode, when encountering special situation and the connecting link impact can not drill, it can transform into hoisting impact, the stroke length can be modulated, it realizes automatic percussive drilling due to continuous operating of connecting link percussive mechanism, these can enhance drilling efficiency and relieve labor intensity ; it adopts pumping reverse circulation to drain slag, which not only resolves the drilling difficulty in special stratum such as pebble and gravel stratum and hard stratum, but also resolves the problem that the percussive drill ' s efficiency is low ; it adopts spur gear differential mechanism as double cylinders lazy tongs of main hoist, which not only ensures the balance state of drilling tool, but also reduces the mechanical design, and reduces the cost ; the bottom plate traveling motion of this drilling machine adopts walking type ; the drilling tower adopts hydraulic pressure uprising, and reduces the assistant operating time

    該鉆機採用曲柄桿、游梁式沖擊機構,使鉆機具有兩種沖擊功能;正常鉆進以桿沖擊為主,遇到特殊情況,用桿沖擊不能鉆進時,可轉為卷揚沖擊,沖程可調,因桿沖擊機構工作,所以實現了自動沖擊鉆進,可提高鉆進效率,減輕勞動強度;採用泵吸反循環的方式排渣,既能有效解決卵礫石地層、堅硬地層等特殊地層鉆進的困難,又很好地解決了沖擊鉆機效率低下的問題;採用直齒圓柱齒輪差速機構作為主卷揚的雙筒同步機構,既保證了鉆具處于平衡狀態,又大大簡化了該機構設計,降低了成;該鉆機盤行走移位採用步履式;鉆塔採用液壓起立,減少了輔助作業時間。
  2. This thesis investigated and researched on non - loaded crack, especially those caused by thermal - shrink, and analyzed the thermal - shrink stress of beam, slab and continuous - wall, found that according data of civil and overseas offered thermal - shrink calculating formula without considering effect of factors, such as the cement quantity, using of aruhuesiru, aggregate size and quantity of sand, which made the result data smaller. in addition, there are not enough construct measure in code

    文對非荷載裂縫,特別是溫度?收縮裂縫進行了調查研究,並對兩端或四周約束的梁、板和部約束的地下墻進行了收縮應力分析,發現國內外有關文獻給出的收縮計算公式沒有考慮泵送商品混凝土的水泥用量、外加劑使用、骨料粒徑和砂用量等因素的影響,計算出的混凝土收縮量往往偏小;另外, 《規范》中針對溫度?收縮裂縫的構造措施不足。
  3. Hence, in the resent years, the last two models, which can both be ranked in discontinuum models, have been developed and have been increasingly powerful. the advantage of these models is that volume - averaging approximations are avoided at the scale of the fracture network. in cases where an equivalent continuum cannot be defined, discontinuum network simulation is a viable alternative

    后兩種方法屬于非介質模型,近年來得到了快速的發展,其作為力求從細節和層上再現巖體的非均質性的數學手段,似乎更能刻畫裂隙巖體滲流的基規律,因而具有廣泛的發展空間。
  4. Based on the research of influenced parameters on constant and varying depth solid web box girder before, the shear lag aroused by the parameters including width - span ratio, outstanding flange on base slab and the position of the tendons are further studied. the investigation show that shear lag values diminish along with the decease of width - span ratio and the departure from the symmetrical axis of anchor position, but outstanding flange is contrary to the former

    在前人對等截面、變截面實腹箱梁剪力滯效應影響參數研究的基礎上,文進一步對腹板開孔的箱梁的寬跨比、板翼緣伸出以及預應力錨固位置改變等參數對箱梁剪力滯的影響進行研究。
  5. This vessel is a steel tug with fore raked stem, transom stern, single bottom, single continuous deck, transverse framing, double engines and double vectorable ducted propellers

    24 . 30m船為鋼質前傾首柱方尾單甲板橫骨架式雙機雙轉動導管拖船。
  6. This vessel is a steel box - type working ship with single continuous deck, deck bottom being transverse framing, sheer being transverse framing, and tapered bow stern

    船為鋼質單甲板,甲板和部為縱骨架式,舷部為橫骨架式的首尾端削斜的方箱型工程船舶船型。
  7. This vessel is a steel shallow draft flushing dredger of all - welded construction, with single deck, single bottom, transverse framing, transom stern and continuous superstructure, and sledge - shape bow. it is operating on the huanghe river for flushing and suctioning silt and sand with the purpose of controlling the huanghe river tongguan section, dredging the waterway and reducing the flooding. main engine : nt855 - m270

    船為鋼質全焊接結構淺吃水內河自航沖砂清淤工作船,具單甲板其中艉舵機艙首甲板為升高甲板,單,橫骨架式結構,方艉及上層建築首部採用雪橇式線型。
  8. The objective of this research is to test the rcc from ] st to 6th order streams of changjiang river watershed in southern mountain area of anhui province, to explore the function and structure of macroinvertebrate community succession rule of the river. the changjiang river water quality asse ssment is carry on by comparison of the community characters of the point - pollution or non - point pollution sites to the hypothesized rcc, the macroinvertebrate community structure indices and bi index were used in the assessment

    文對閶江河棲動物群落結構和功能進行了系統研究,運用河流性理論對該河一至六級支流各取食功能團比例的演替規律及毛翅目成蟲的群落結構進行了比較分析,並通過計算棲動物群落結構指數和bi指數,對該河進行了水質評價。
  9. This paper approaches reinforcement fabric cover, reinforcement fabric joint, reinforcement fabric embedded inserts, wall anchorage depth and wall joint form during the design of underground continuous walls, meanwhile, some problems affecting wall quality in the various sectors during construction are also discussed, including reinforcement fabric installation, groove bottom hole cleaning and quality testing equipment

    文對地下墻設計過程中的鋼筋網保護層、鋼筋網接駁、鋼筋網預埋件、墻體錨固深度、墻體接頭形式以及施工過程中鋼筋網安裝、槽清孔、質量檢測設備等各個環節中影響墻體質量的一些問題進行了探討。
  10. Qiandaohu lake was very famous for its clean water quality. but in recent years the water body has become seriously eutrophic especially during summer months in some areas of the lake and came to the attention of national, provincial and city environment protection agency. the main objective of this study involved the following : sampling and monitoring water from the lake ; water quality assessment and biological assessment ; ascertain the limiting factors for phytoplankton growth ; fuzzy cluster analyse of water pollution of all sampling points ; predicting total phosphorus concentration in the lake by using static models ; setting up regression models and their application ; setting up an eco - dynamic model and its simulation

    研究根據1998 - 2000年監測數據,對千島湖進行了水質評價和生物評價;分析了千島湖水體富營養化的限制性因子;同時根據千島湖各個取樣點的污染狀況,對千島湖進行水環境質量區劃;利用前人的經驗統計模型預測了千島湖現有的磷濃度水平及治理所需要削減的污染物負荷量;並且組建了多個回歸統計模型,運用這些模型預測千島湖水體中的總磷濃度;最後根據多年水質、質、生物等方面的監測數據以及千島湖流域的氣象和社會經濟狀況的資料組建機理性的千島湖富營養化模擬模型。
  11. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    文較為系統地給出了海南地區電離層的參數變化特徵,特別是得到了一些暴時與以往不同的季節特性;第一次給出了海南地區的電離層等離子體漂移特徵,發現等離子體漂移暴時擾動在三個方向上有內在的聯系,得到了電場變化曲線;研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別;通過對強磁擾動事件期間的參數變化特性分析發現,在磁暴恢復相期間海南地區電離層部存在一個電子密度非常大的高密度區,高密度區部電子密度梯度隨高度急劇增加,該區域的水平尺度可達100公里以上時間尺度約為2小時,出現過三次,這是一個在海南從來未發現的新現象;研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  12. ( 2 ) some studies are made for the subject of various effects on wave propagation and ground motion of multi - dry, multi - saturated, and alternate dry and saturated soil layers. a comprehensive computer program is compiled, accounting for soil dilatancy, linear and non - linear constitutive relation, rigidity degradation and suiting to any combinations of soil layers, dry and / or saturated with different thicknesses, properties, continuity conditions at interfaces, and inputs at base and top boundaries. from the numerical results obtained for a quite large number of typical cases, some knowledge of general trends of response for, especially, the cases of alternate dry and saturated soil layers are gained both quantitatively and qualitatively

    ( 2 )對不含水土層分層排列、飽水土層分層排列、不含水土層與飽水土層分層交錯排列情況下對波傳播和地面運動的影響做了一些研究,考慮到土壤的剪脹性、線性和非線性構關系,剛度退化等因素,編制了可適用上述各種情況和任意多土層(包括含水或不含水、力學性質不同、厚度不同、邊界條件不同等) ,在不同基輸入或上邊界輸入作用下的通用分析程序,通過對相當數量的典型情況進行的分析計算,得到了一些趨勢性的認識,特別是對飽水與不含水土層分層交錯情況,取得了一些新認識。
  13. And the effect of the work order of the two propellant units to the performance of the trajectory and the matching conditions to obtain the theoretical optimum trajectory is discussed too. according to the ballistic speciality of a hybrid base - bleed - rocket extended - range projectile during base - bleed and rocket work, its physical parameter is non - constant, such as its mass position of mass centre polar and equatorial moment of inertia. after a mulriple ballistic model of constant physical parameter is established, a mulriple ballistic model of continuous and non - continuous physical parameter is educed and the program is compiled, the theoretical tool is constructed to study othe other pivotal technology of a hybrid base - bleed - rocket extended - range projectile

    文根據排?火箭復合增程彈其排燃減阻和火箭助推階段的質量、質心位置、轉動慣量等結構特徵參量變化的彈道特徵,在建立排?火箭復合增程彈結構特徵參量為不變常量的多元彈道計算模型基礎上,導出了結構特徵參量為變化量和非變化量的排?火箭復合增程彈多元彈道計算模型,編制了相應的計算機數值分析程序,構建了研究排?火箭復合增程彈其它關鍵技術的理論工具。
  14. In this paper, i have analyzed the distortion of continuous rigid frame bridge at the condition of temperature uniform change by displacement method and finite element method computer aided design program - sap91. it included : the distortion and inner force condition at the bottom of single pier when it is consolidated, the distortion and inner force condition of thin double piers - rigid frame bridge ; the distortion and inner force condition of thin double piers - rigid frame bridge when the consolidation is elastic consolidation and confinement adopted different rigidity factor ; and the inner force condition of thin double piers - rigid frame bridge when the distance of piers is different

    文利用位移法和結構有限元電算程序sap91 ,對剛構體系橋梁在受到均勻溫變情況下:墩固接單柱墩、雙薄壁墩剛構橋;墩彈性固接時的雙薄壁墩剛構橋採用不同轉動約束剛度系數情況;以及雙薄壁墩墩間距不同的剛構橋梁的受力情況進行了分析和比較。
  15. Promote condition to prevent parching, prolong continuous working time more than one time. larger applicant scope, both thin and glutinous materials can be adapted. only o - type ring should be replaced when maintaining without heavy tools and dead angles. wash thoroughly, high efficient, far more than coil heat exchanger. heat transmit coefficient is close to plate system, producing cost is high and the floor space is large

    改善了結垢的狀況,生產時間延長一倍以上,適用范圍更加寬廣,稀薄狀、粘稠狀物料均能勝任,維護時只要更換o形圈,無需笨重的工具,無死角,清洗徹,效率高,換熱效率遠大於盤管式,傳熱系數接近板式,製造成較高,佔地面積較大。
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