例句與造句

1. It is necessary to study on the sediment density current
   研究異重流具有非常重要的現(xiàn)實(shí)意義。
2. The sediment density current is very complicated . the contributions by this thesis supply a good basis for further study on the density current . so it has a practical value
   本論文中所推導(dǎo)出的雙層計(jì)算模式下的異重流方程可作為今后建立異重流數(shù)學(xué)模型的基礎(chǔ)，具有一定的應(yīng)用價(jià)值。
3. After a comprehensive review on the study of sediment density current in the recent several decades , a set of differential equations for 2 - d density current under double - layer computational mode is established . by simplifying th . set of equations , a 2 - d numerical simulation of sediment density current and sediment outflow has been made in the liujiaxia reservoir in the yellow river basin , and the result is reasonable
   本論文在對異重流運(yùn)動近幾十年來的研究成果進(jìn)行較系統(tǒng)、全面論述的基礎(chǔ)上，針對目前研究較為前沿的異重流運(yùn)動數(shù)值模擬問題，提出了一套二維異重流雙層計(jì)算模式下的基本方程，并在這套方程簡化的基礎(chǔ)上，對黃河流域劉家峽水庫中的異重流運(yùn)動和排沙進(jìn)行了二維數(shù)值模擬，結(jié)果令人較為滿意。
4. On the one hand , the sediment density current often does a great harm to the reservoir , and causes a big loss of reservoir ' s storage capacity or makes reservoir severe deposition ; on the other hand , sediment outflow by density current is an effective measure to mitigate sedimentation
   異重流(本論文中主要指因含沙量的差異而形成的渾水異重流)一方面常常給水庫帶來嚴(yán)重的危害，加速水庫的淤積和庫容的損失；但另一方面它又為水庫排沙提供了一種極為有效的途徑? ?水庫異重流排沙。
5. It's difficult to find sediment density in a sentence. 用sediment density造句挺難的