其轨道速度一定是在每秒几百米。Her orbital speed must be a few hundred meters per second.他在赛跑中让了二百米.He has a handicap of 200 metres.类固醇检测呈阳性后，他的奥运百米金牌被收回。He was stripped of his Olympic Hundred Metres gold medal after testing positive fo...
Therefore, the magnetomotive force in the air gap is essentially proportional to the primary ampereturns squared.所以, 气隙中的磁动势实际上与初级安匝数的平方成正比.The centimeter - gram - second electromagnetic unit of magnetomotive force , equ...
He accused the garage of shoddy workmanship on the bodywork.他指责汽车修理厂车身修理工艺拙劣.The car's bodywork was already showing signs of deterioration.这辆车的车身已经显示出了劣化迹象.It is one of the cheapest cars on the market, with tinny bo...