水源

The contracts are still being negotiated, but the price to farmers in the Westlands Water District is likely to be close to $500 per acre-foot—that is, the amount that it takes to flood an acre of land a foot (30 cm) deep.

合同还在谈判中，不过卖给西部水源地区农民的价格很可能接近每英亩英尺500美元——也就是灌溉一英亩土地一英尺深（30厘米）所用水的花费。

Adverb to the best of one's ability; as far as possible

在沙漠中，人们是很难寻找到水源的。

By the analysis of the dead leaves and branches and the holding water contents of five type standing forests—birch and larch mixed forest, larch planted forest, Chinese pine planted forest, birch natural forest and shrub forest in Wutai Mountain area, central Asia alpine region, the water conservation benefit among them was compared.

为了探讨不同林分水源涵养功能，为地域林业发展树种规划提供技术依据，该研究以中亚高山区五台山林区内五种不同类型林分为试材，调查分析了不同林分的枯落物及其持水量，比较了不同林分类型的涵养水源效益。

This I think is a very important aspect here, which is that climate change will affect water and the watersheds, upstream and downstream, land and water quality.

因此，我认为，合作是解决问题的非常重要的因素，因为气候变化将会影响上下游的水源和水域，以及土地和水源的质量。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型预测了现状开采条件下未来20年的地下水位和地面沉降的变化，在此基础上，提出了防治西安市地面沉降的五个地下水开采方案，利用所建的地面沉降模型对各个设计方案其进行了模拟和预报，对预测结果的分析表明：①封停自备井是防治地面沉降最为直接和最有效的对策，对防治地面沉降起着最为积极的作用；②采用人工回灌方法使被压缩的土层得到的恢复是非常有限的，对地面沉降不能起到根治作用，只有回灌量明显大于开采量时才能有一定的效果；③&调整开采层次，在浅层取水&对防治地面沉降的效果十分明显；④布设&砂井&可以增加对承压含水层的越流补给量，从而可以有效地缓解和控制地面沉降的发生和发展；⑤对西安市的地下水开采，可在河流阶地区、冲洪积扇区和黄土塬区分别采用1600m、2000m、1600m的井间距布置应急自备井，分别采用2500m~3/d、1500 m~3/d和200 m~3/d的单井开采量，开采第一承压水，在平水年或者丰水年不开采，涵养地下水源，在枯水年启动这些应急自备井开采，在输出分析范围内共可获得162000 m~3/d(5913万m~3/a)开采量，可以有效地补充西安市的供水水源，缓解供水紧张局面，开采年开采导致的下降的水位可在停采3～4年后得到基本恢复，同时，这种开采方式不会造成大的地面沉降量。

The method of adjustmeng is:The water from the reflux pipe(2)into the cup(4)should not overflow the edge of the cup(4),but flow out through the overflow pipe.

蒸发锅内水沸腾后，开启进水阀(1)但应注意水源不宜过大过小调节方法一般掌握回水管(2)进入加水杯(4)的水源不从杯口溢出才杯子溢水管流出即可直接调节到蒸馏水从(8)正常流出。

Water source heat pump: water source heat pump-circuit tap-tap technical requirements for the fastening bolts, insulation no injuries, no loose and overheating aging.

水源热泵：水源热泵无励磁分接开关技术要求是各抽头联接螺栓紧固，绝缘无外伤，无松散及过热老化现象。

In order to fully exploit the potential of the Flare plate solar collector and the low temperature water source pump in Sitsang, the simulation model of Solar assisted heat of low temperature water source pump system is developed in this paper. Using this simulation procedure, the designer can predict the dynamic characteristic of the system at the design phase.

为了使太阳能低温水源热泵辅助供暖系统可以在西藏地区充分发挥水源热泵和平板集热器的潜力，本文采用matlab的simulink仿真技术对该系统进行建模，通过模拟来预测该太阳能系统系统的运行情况，可以使设计人员，在设计阶段可以对该系统的动态特性有一个较全面的了解。

Consequently, a mathematical model is established to explain the effects of oil organics on biotreatment of source water.

相应的数学模型较全面地反映了石油污染水源水中石油污染物对水源水的生物处理的影响。

In order to improve the performance of the moderate and high temperature watersource heat pump system,firstly analyzes the selection principles of the refrigerants.

为了更好地提高中高温水源热泵机组的性能，首先简要分析中高温水源热泵制冷剂的选取原则。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。