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percolation coefficient中文是什么意思

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用"percolation coefficient"造句"percolation coefficient"怎么读"percolation coefficient" in a sentence

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  • 渗透系数

例句与用法

  • ( 2 ) in order to validate the rightness of the parameters , hydrogeology parameters is measured , such as discharge , percolation coefficient and hydraulic pressure using the precise instruments and existing formula and arithmetic
    (二)利用各种精密测量仪器进行渗流量、渗透系数、水压力等水文地质参数的测定,结合已有的公式和算法,验证各种数据的取值合理性。
  • Combining achievements in past scientific research , this thesis summarizes some problems in the process of decreasing water , the problems contains : important parameters such as percolation coefficient , interfering radius etc ; designers get parameters from their experience and make their choice of limited prospecting materials too simply , because of the limits , designer ca n ' t make quantitative analysis on groundwater ; differences on breakwater effect of setting water - tight screen is still existed , although research evolvement in this field is done ; they ca n ' t grasp the hydrogeology parameters accurately in that it influences rightness of designing in deep excavation water - decreasing
    本文结合以往的研究成果,总结了降水过程中存在的一些问题,主要包括:重要设计参数,如地层渗透性、基坑降水影响半径等,设计中仅从个人经验出发取值,对有限的勘探资料进行取舍和过分地简化。这些局限使设计者不能对地下水进行科学的定量分析,盲目性较大;深基坑降低承压水引起的周边地面沉降的研究虽已取得很大的进展,但是一些主要问题仍未解决,对防渗帷幕的实际挡水效果存在不同看法;对于弱透水层的水文地质参数一直难以准确把握,影响了深基坑降水设计的正确性。
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