推頭下降 的英文怎麼說
中文拼音 [tuītóuxiàjiàng]
推頭下降
英文
push down-
The nonlinear exponent is a function of the radial distance from the pumping well. the two - regime well flow problems being in the steady state. in the fourth chapter, the problems of two - regime well flow have been discussed concentrating on a kind of special seepage law
第四章對一種特殊的非線性滲流規律即充分紊流的情況，進行了全面、詳細地討論，推導出了該情況下井流問題的滲流速度、水頭降深和井流函數的解析表達式，作出了些具有代表性的標準曲線。This paper introduces the none - defect operation method of high - grade knitting yarn manufacturers, which eliminated the lapped joints of the yarn from drawing, roving upto spinning, reduced defects, remarkably raised the roving efficiency and minimized the yarn breakage per 1000 spindles in spinning and the yarn breakage per 100 bobbins in cone winding
摘要高檔針織用紗企業推行的無疵點操作法，從前紡並條、粗紗到細紗取消了原來的包卷接頭，減少了長粗、長細紗疵的產生，粗紗效率明顯提高，細紗每千錠時斷頭和絡筒每百管斷頭下降。The primary contents are as follows : ( 1 ) based on the fundamental seepage physical equation, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. a calculated model for analysis of saturated - unsaturated seepage field with the boundary condition of rain infiltration also has been developed
總體說來，本文主要從以下幾個方面開展了研究： （ 1 ）由基本滲流物理方程出發，以壓力水頭為基本未知量推導多孔介質三維飽和?非飽和滲流微分方程，在此基礎上分析了邊坡在有降雨入滲條件下滲流的定解條件和計算模型。
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