最低地下水 的英文怎麼說
中文拼音 [zuìdīdexiàshuǐ]
最低地下水
英文
basal water-
Ammoniac nitrogen enters salt of nitric acid of the translate into after soil, the chroma when arriving at groundwater is less than 30 milligram / litre, far be less than the lowermost standard with drinkable groundwater
氨氮進入土壤后轉化為硝酸鹽，到達地下水時濃度小於30毫克/升，遠小於地下水飲用的最低標準。By the large quantity of indoor and field soil mechanics test, this paper investigated physics and mechanics property of xigeda stratum and xigeda compounding filling, profoundly and systematically studied on shearing strength, cbr ( including indoor cbr and field cbr ) and intensity feature of xigeda compounding filling. the new achievement and cognition as follows : ( 1 ) cbr value is decided by moisture content and mudstone content of xigeda compounding filling. the filling material can satisfy minimum intensity standard of express highway when mudstone content is less than some fixed value, ( 2 ) this paper established field cbr standard value which can synthetically evaluate the filling material nature and field compaction degree. ( 3 ) the optimal compacting mean of xigeda compounding filling is hard oscillation first and weak oscillation later, not traditional way which is weak oscillation first and hard oscillation later. ( 4 ) this paper put forward the conception of optimum moisture content in construction different from optimum moisture content of indoor impaction
本文以昔格達填料強度特徵為研究對象，通過大量的室內及現場試驗，從昔格達地層巖組的物理力學性質、昔格達填料的物理性質入手，對昔格達填料的抗剪強度、室內承載比及現場承載比特徵進行了較系統地研究，獲得了如下認識及進展：昔格達混合填料承載比值受填料含水量及其中泥巖含量的影響，當泥巖含量小於一定值時，昔格達混合填料具有較高的承載比值，能夠滿足高速公路對填料的最低強度要求；建立了綜合評判昔格達填料性能及現場壓實效果的現場承載比（ cbr ）標準；對于昔格達填料而言，最佳的碾壓方式為先強振后弱振而不是傳統的先弱振后強振；提出了與室內擊實最優含水量相區別的施工最佳含水量的概念。This paper introduces the latest progress of high level radioactive waste disposal programs in the world, and discusses the key scientific issues as follows ： ( 1 ) the precise prediction of the evolution of a repository site ; ( 2 ) the characteristics of deep geological environment ; ( 3 ) the behaviour of deep rock mass, groundwater and engineering material under coupled conditions ( intermediate to high temperatures, geostress, hydraulic, chemical, biological and radiation process, etc ) ; ( 4 ) the geochemical behaviour of transuranic radionuclides with low concentration and its movement with groundwater : and ( 5 ) the safety assessment of disposal system
在介紹國內外最新研究進展的基礎上，重點討論高放廢物地質處置的若干關鍵科學問題：處置庫場址地質演化的精確預測、深部地質環境特徵、多場耦合條件下（中（高）溫、地殼應力、水力作用、化學作用、生物作用和輻射作用等）深部巖體、地下水和工程材料的行為、低濃度超鈾放射性核素的地球化學行為與隨地下水遷移行為及處置系統的安全評價。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，預測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、水資源平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（北水源地、豆羅水源地、水泉灣水源地）和自備井開採的投資和運行費用最低為目標，建立了城市供水水源優化調度經濟管理模型，運用線性規劃方法進行了城市中長期供水水源優化調配。The underground water flows a few meters and enters a water - dropping hole of the underground river. when the water level rises one to two meters high, it promptly drops down, producing thunder - like drainage sound
原來，虹吸泉所在地是奇風洞地區的最低點，二者相通，地下河水流淌數米后，進入暗河的一個落水洞，當水位升高一至二米后會猛然跌落。The groundwater, flowing towards east, outflow a part in yuan jiapo and wentang spring aside luo river, and the rest majority completely drain in the bottom glade of yellow river and its nearby springs - mafen and chunv spring
這股東流的地下水，在洛河袁家坡和溫湯泉排泄一部分地下水，最終全部排泄到本區最低排泄點? ?黃河及其附近的馬瀵泉和處女泉等。The mission of the conservation and production research laboratory is to 1 ) develop improved water management methods and irrigation technology for sustaining or enhancing crop productivity, improving water use efficiency, reducing ground water use, and enhancing water and soil quality ; 2 ) develop management practices that optimize the use of water, soil, climatic, and nutrient resources for economically and environmentally sustainable crop and livestock production systems under dryland and limited - irrigation conditions ; 3 ) develop systems for utilizing renewable energy sources ( wind, solar, and biofuels ) for pumping irrigation, livestock, and farmstead water and generating electric power ; 4 ) develop regimens that reduce environmental risks posed by accumulations of feedlot wastes by reducing the phosphorus content, improving nutrient utilization, and applying manure to grasslands
描述:美國農業部保持與生產研究實驗室的主要任務是： 1 .開發水資源管理方案或灌溉技術，提高用水效率，減少地下水使用，改善土壤和水質； 2 .使水資源、土壤資源、氣候和養分資源達到最優化，以保證在乾旱和灌溉條件有限的地區種植業和畜牧業能可持續發展； 3 .開發可再生能源用於灌溉、畜牧飼養和發電； 4 .通過減少磷成分，降低飼養場廢棄物的環境風險，將其施用於牧草地，提高養分利用率。Longgang nature reserve plays an important role in preserving two langur species of both white - headed langur and francois langur. interview and field survey methods were used to survey the distribution and population size of these two langurs in this natural reserve from december 2001 to january 2002. the result indicated that the reserve has 8 groups of white - headed langur with 68 individuals in longrui and 10 groups of francois langur with 75 individuals in longgang. the distribution area and population size of both of the two langurs in this reserve have greatly declined in the past decades. they are seriously threatened and have high risk of disappearance from this reserve if no effective measures are to be taken at once
為了確定弄崗自然保護區內白頭葉猴的種群數量，彌補黑葉猴種群數量的空白，掌握此保護區葉猴的生存現狀，採用訪問法和實地數量統計法相結合的方法對弄崗自然保護區的弄崗、隴瑞和弄呼3個部分進行深入的調查研究.調查結果表明，在隴瑞片范圍內，共有8群白頭葉猴，種群大小在68隻左右，和20世紀80年代末的244隻相比，數量下降相當驚人;在弄崗片內，共記錄到黑葉猴群10群，最大的種群為11隻個體，最小的種群是4隻個體，共計約有75隻黑葉猴（絕對數量統計） ;弄呼的黑葉猴種群已經于上個世紀的晚期消失.造成目前狀況的因素主要是過度狩獵和其他形式的過度干擾.弄崗自然保護區的葉猴種群數量已經接近可持續繁殖種群的最低水平，如不採取有效的保護措施，這個種群將很可能在短期內消失Optimal periodic control with the lowest operational cost by limiting total substrate discharge mass was studied. through adding new state variable and using supplement functions, the problem with restriction conditions was converted into nonrestriction problem. in addition, the dynamic searching method of optimal step coefficient was developed to modify the conventional gradient method, consequently the calculation problem of the multivariable optimal periodic control was able to be resolved better. it was found that the operational costs of optimal control under various initial states are distinctly different. a new concept of optimal control under optimal initial state was presented. it is pointed out emphatically that to the treatment system without optimal control condition, the suboptimal control with extensive practical value can be realized according to the results of optima control
著重研究了在限制有機物排放總量時，使其運行費用最低的最優周期控制問題.通過增加新的狀態變量和用補償函數法，將本課題的有約束條件問題化為無約束條件問題，並提出了最優步長參數的動態搜索法來修改傳統的梯度法，從而較完善地解決了多變量最優周期控制的計算問題.研究中還發現了不同初始條件下最優控制所需要的運行費用也大不相同，進而提出了最優初始狀態下最優周期控制的新概念，這對保證出水質量的同時進一步降低污水處理成本來說具有更重要的意義.本文還強調指出：對于尚不具備實現最優控制條件的處理系統，可根據最優控制的研究結果實現具有廣泛實用價值的準最優控制You are going to explore the most beautiful view of death valley - scotty s castle. enjoy the unrivalled scenery at zabreski point. then, visit the lowest point of the united states - bad water
驅車前往美國面積最大的火焰谷死谷國家公園，參觀斯卡提斯古堡scott s castle景色瑰麗的拉培斯基山丘zabreski point ，以及美國最低的地點，低於海平面- 282 feet以下的壞水區bad( 6 ) conclusion was obtained by the analyzing the mechanics environment and the stability of the lanslide on the right bank after the dam built : the value of the rock mass stress increased and the tensile stress region obviously reduced, the direction of the principal stress was unchangeable the dam and the landslide were stable under the dangerous condition ( the reservoir and at the same time the earthquake was viii ), but when the water lever suddenly fell and did not think of other force, safe factor evidently reduced, the dam and the landslide will be destroyed under the most dangerous condition ( the water lever suddenly fell and at the same time the earthquake was vi ) ; the stability of the landslide will be destroyed by the horizontal thrust under the most dangerous condition or ; the physical and mechanical parameter will be reduced due to long period filter, the landslide will be destroyed too
（ 6 ）建壩工程荷載條件下河谷巖體力學環境分析及右岸古滑坡體的穩定問題分析得出：建壩后河谷的巖體應力量值明顯增高，同時左岸的張應力區的范圍及量值明顯減小，主應力的方向依然與模型的底邊界垂直；大壩建成后逐漸蓄水階段以及同時考慮本區最強地震力的作用等各種不同的工況條件時，滑坡體及壩體總體上仍處于穩定狀態；水位驟降時，在未考慮其他外力作用的情況時，滑體的安全系數將顯著降低。若考慮水位驟降及本區最大地震力的共同作用，壩體將在滑坡體下滑推力的作用下產生破壞；建壩后水平推力對右岸古滑坡體穩定性的影響分析可以看出，在最危險的工況條件下，壩體及滑坡體也將處于臨界狀態；在長期滲透變形的作用下，由於滑帶的物理力學參數的降低而有可能導致壩體失穩破壞。2. based on the analysis of the historical evolution of jinan springs ' spurting, a quantity equation between the anaual average spring discharge and the anaual lowest water table is built according to the statistic data, which enable us to gain the corresponding relation between baseline water level and the smallest scenic discharge of spring gushing. then the groundwater discharge in the spring area is calculated and the controlling parameter of maximum available amount of groundwater exploiting is obtained
泉域總面積1486平方公里。 （二）通過分析濟南市泉群噴涌歷史統計資料，首先建立泉群年平均噴涌量與年最低地下水位之間的定量方程，得出四大泉群噴涌的底限水位與最低景觀流量的對應關系，然後，計算泉域內地下水的入滲補給量，再得出保證泉涌的地下水最大允許開采量的控制性參數。Aimed at the current problem of pipeline layout optimization technique, the research of irrigation pipeline layout and pipe diameter optimization has been done, the gis ( geography information system ) and graph theory were first put forwarded to applyed to the design of low pressure pipeline irrigation project in the paper. with the support of gis, the minimal spanning tree theory of graph theory and 120 project theory can be applied to irrigation pipeline ' s layout optimization. at the aspect of pipe diameter optimization, simplicial method and interior - point method are been used in solve liner optimization model of pipe diameter to reach minimum project cost or a nnual working cost of low pressure pipeline irrigation
本文主要針對當前南方地區低壓管道輸水灌溉規劃設計中存在的技術難點，開發研究先進實用的樹狀低壓輸水灌溉管網計算機輔助設計系統。首次提出了將gis （地理信息系統）和圖論技術應用於低壓管道輸水灌溉規劃設計及灌溉管網優化中，在gis支持環境下，應用圖論中的最小生成樹法和120規劃進行管道的最優化布置。建立以管道輸水灌溉系統的年折算費用最小為目標函數的管徑優化線性規劃模型，並將內點法應用於線性優化模型的求解。The dead sea or the salt sea 400 meters below sea level is the lowest area on earth below sea level
死海或鹽海在水平線下400公尺，它是地球上最低的地方。To make the thermal efficiency best, y, a, av / as should be : r : [ 60 - 75 ] a : [ 1 - 1. 5 ] av / as : [ 0. 8 - 1 ] in this paper, numerical model of solar radiant floor heating system is also built. the model of numerical model is solved by finite differance method. the smaller the distance to the tube is, the higher the temperature on the surface of the floor is
地板表面相鄰兩管間水平方向的溫度分佈：距離加熱管越近，溫度越高；兩管中間處溫度最低；供回水溫差越小，地板表面溫度分佈越平緩；在供回水溫度和排管間距均一定的情況下，地板覆蓋層厚度越大，其溫度分佈越為平緩，對應的地板表面溫度分佈越均勻。The reduced minimum cement contents shall only be used when trial mixes have verified that concrete with a maximum free water / cement ratio not greater than that given for a particular condition can be consistently produced and it is suitable for the conditions of placing and compacting
只有經過試拌證實，可以持續不斷地生產出最大水灰比不大於某一特定工況給定值的混凝土，而且這種混凝土適合於攤鋪與夯實，在這種情況下，才可以使用這一縮減的最低水泥用量。Using endogenesis and exogenous geographical points of soil phosphorus equilibrium as the two turning points in the s - type membership function, based on fuzzy mathematics, to evaluate the renewing status and fertility of xiongxian country ' s soil phosphorus system. the results are that complete p treat is the best, ck and - p are in the lowest, 1 / 2p mediates. for the sustainable fertilization strategy, 1 / 2p is the best scheme, according to the evaluation of various treatments " exogenous renewing coefficient of soil phosphorus
利用模糊數學隸屬函數s型模型，把雄縣土壤磷素外源、內源地理平衡點分別作為上下兩個閾值，對該土壤磷素系統更新狀況和磷素肥力進行評價，全p處理土壤磷素系統更新狀況最佳，磷素肥力水平最高， ck 、 - p處理磷素肥力水平最低，土壤磷素系統更新狀況最差， 1 2p處理居中。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。The minimum wage in most parts the country of 220 million is as low as around 40 a month. a tiny number of indonesians are among the richest people in asia while millions live in dire poverty in urban slums or shanty towns in the countryside
報道說，印尼目前的總人口為2 . 2億人，該國大部分地區的最低工資水平僅為每月40美元左右。數以百萬的印尼人在城市貧民窟或鄉下的破屋陋室中過著極度貧困的生活。Dry matter and yield decrease with salt increasing on same irrigation level. ( 4 ) the minimal soil moisture content increases with salt content increasing. meeting minimal needs, crop yield is satisfactory in the soil with salt content bellow 0. 6 %, but not in soil salt content above 0. 6 %, so planting in this soil is n ' t suggested
（ 4 ）隨著土壤鹽分增加作物對土壤水分要求也增加，含鹽0 . 6 %以下的土壤滿足最低水分要求，可獲較理想產量，大於0 . 6 %以保持土壤水分狀態減輕或消除鹽分脅迫的措施已經不可行，建議不使用含鹽> 0 . 6 %的耕地。分享友人