aThe electric force is a constant value applied for 90% of the stroke, but not at the turning points when piston speed is low. An estimation of the friction force can be deduced from the friction mean effective pressure, fmep. 当活塞速度是低的时,电力是90%申请恒定的价值冲程,但不在转折点...
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A、Around the charge, there is a special form of material called the electric field. B、The electric field is an aspect of the unified electromagnetic field, which is characterized by the vector force exerted on the charge that is lead into the electric field. ...
A. the magnetic field B. the electric current only C. the mechanical force D. the heat 相关知识点: 试题来源: 解析 A。解析:在电动机中,使转子转动的力是由磁场产生的。B选项仅电流不能使转子转动;C选项机械力不是使转子转动的最初原因;D选项热与使转子转动无关。反馈...
轮机英语题库翻译.pdf,第一章 船舶动力装置 0001 Before disconnecting the Oil pipe , would y lu ipe ? ” asked the oil barge owner. 0001 B ou f sh th a ned in the p e oil ret i y n A. b usi g o fres f h water (用淡水) wi pres 缩气 B. th com sed air (
Ownership of battery electric vehicles is uneven in Norwegian households The type of vehicles owned by Norwegians depends on household size, income and work commute, and battery electric vehicle ownership is concentrated in the wealthier part of the population, according to an analysis of socio-eco...
(General Physics) an imaginary line representing a field of force, such as an electric or magnetic field, such that the tangent at any point is the direction of the field vector at that point Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers ...
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