具体地说，如果装置为低阻抗，那么通过开关的电流就会引起很明显的压降。
In particular, if the devices have low resistance, the current flowing through the switches may cause a significant voltage drop.
本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations.
提出计算流化压降的修正式和临界流化速度的准数关联式，为进一步研究此设备的干燥性能打下基础。
The modified correlations of dimensionless groups for calculating both-Ap and Um are presented as the basis for further study on the drying performance of the dryer.
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