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water pumping
相关语句
  抽水
    Energy conversion of water pumping well is analyzed from the aspects of work and energy.
    本文试图从功和能的角度分析抽水井的能量转化。
短句来源
    The process of water pumping is to lift water from underground to ground surface by inputting energy to pumping equipments.
    抽水过程是通过抽水设备输入一定能量,克服井管内外的摩阻,把水由地下提升到地表的作功过程。
短句来源
    Work input to water pumping equipments is the main reason for water head lowering.
    抽水设备输入的有用功是决定水井出水量分配和产生能量转化,即引起水头下降的根本原因。
短句来源
  提水
    Planning Scheme of the Water Pumping Irrigation District by Using the System Administrative Level Analysis and Theory
    应用系统层次分析模糊选择提水灌区规划方案
短句来源
    Analysis of Critical Economic Lift for Multilevel Water Pumping Irrigation System
    多级提水灌溉系统的临界经济扬程分析
短句来源
    In hilly areas, water pumping irrigation lift is high, and the irrigation water fee is high because of the high pumping cost, so the burdens on farmers are very heavy.
    丘陵地区提水灌溉需要的扬程高 ,水费占灌溉成本的比重大 ,农民的负担很重。
短句来源
    Aiming at this problem, the authors present the concept and the calculation method of critical economic lift of multilevel water pumping irrigation system in hilly areas on the basis of full consideration of farmers water fee bearing capacity. The study provides scientific support for the renovation, planning and design of water pumping irrigation system in hilly areas.
    针对这种状况 ,在充分考虑农民的水费负担能力的基础上 ,提出丘陵地区多级提水灌溉系统临界经济扬程的概念和计算方法 ,为丘陵地区提水灌溉系统的更新改造和规划设计提供了科学依据
短句来源
  “water pumping”译为未确定词的双语例句
    THE UTILIZING TEST RESEARCH OF TYPE FDG-5 WIND POWER WATER PUMPING UNITS IN SHEYANG SALTERN, JIANGSU PROVINCE
    风力提水机在江苏射阳盐场的试验应用研究
短句来源
    The Purification Effects on Closed Water Area by Different Simulating Methods of Water Pumping and Drainage
    模拟不同抽排水方式对封闭性水域环境净化效应的研究
短句来源
    Regarding the irrigated area as a balance area, by analysis of mineralization degree of water pumping from the Yellow River and drained off water from irrigated area, the change of the draining off water ion is forcasted in water reducing condition.
    把灌区作为一个均衡区,通过对黄河来水矿化度、灌区排水矿化度的分析,预测了在灌溉引水、排水减少时排水离子量的变化;
短句来源
    With an aim at lower capacity of water flow exchange in a closed water area characterized by easy occurrence of eutrophication, the mathematical simulation method is used to study the purification effects on water area in different cases of installing water pumping and drainage facitilities and water quality disposal devices in a water area by adopting the bioecological models.
    针对封闭性水域内水流交换能力低下,易产生富营养化的特点,采用生态模型,对水域内设置抽排水和水质处理设施等情况下水域环境的净化效果,用数值模拟方法进行了探讨。
短句来源
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  water pumping
excavating of new canals and underground water pumping; 1500-1550, during the Sp?rer Minimum of solar activity; 1720-1830; 1250-1350, which was also a stormy period in the North Sea.
      
Automating the operation of water pumping stations
      
For the first time direct evidence of water pumping through a treated surface is presented.
      
The gas production is used for electricity generation, water pumping and heating, solid wastes drying etc.
      
In all of the tested runs the width of dispersion zone has reduced significantly due to brackish water pumping.
      
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Hei Fang-tai water pumping irrigation district of YunJin county the planned according to the basic viewpoints of fuzzy theory and system analyses. A compthemive planning is cesried out on the basis of and by compaling their a advantages in different schemes by using the pronciples of fussy optimization, tffiliency and management. The best programme is inesented: of will solue the miajor problems of the irrigation district and improve agricultural production as a whole.

本文以模糊集理论与系统分析的基本观点为基础,对永靖县黑方台提水灌区进行了重新规划,应用模糊优化原理,对提灌区不同方案进行了综合规划,并对各方案在投资、效益、管理等方面进行最优化排序,最后提出了这个提灌区的最优规划方案,对在实际中解决灌区规划问题和促进农业发展有一定的实用价值。

It is presented in this paper an optimal operating model which makes optimal decisions for water pumping from reservoirs and simulates the procedure of canal water distribution for reservoirs in the Baojixia Irrigation District of Shannxi Province. It is also noted that the model has been validated by simulating real irrigation systems.

本文给出宝鸡峡水库群优化运行模型。模型提供了水库群抽水的优化决策并模拟了渠系的配水过程。模型经过了实际系统的初步验证。

Energy conversion of water pumping well is analyzed from the aspects of work and energy. The process of water pumping is to lift water from underground to ground surface by inputting energy to pumping equipments. Work input to water pumping equipments is the main reason for water head lowering. According to Law of Conservation of Energy work put out by pumping equipment is partially consumed by resistance of well tubes and partially transmitted to well bottom to drive...

Energy conversion of water pumping well is analyzed from the aspects of work and energy. The process of water pumping is to lift water from underground to ground surface by inputting energy to pumping equipments. Work input to water pumping equipments is the main reason for water head lowering. According to Law of Conservation of Energy work put out by pumping equipment is partially consumed by resistance of well tubes and partially transmitted to well bottom to drive groundwater gathering to well.

本文试图从功和能的角度分析抽水井的能量转化。抽水过程是通过抽水设备输入一定能量,克服井管内外的摩阻,把水由地下提升到地表的作功过程。抽水设备输入的有用功是决定水井出水量分配和产生能量转化,即引起水头下降的根本原因。按能量守恒定律,抽水设备输出的有用功,一部分消耗于井管内的阻力损失;另一部分传递到井底推动地下水向井汇流。

 
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