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...
His destination was Chobham Common, a long way from his Cotswold home.他的目的地是乔伯姆公地，那里和他在科茨沃尔德的家离得很远。You can check your baggage right through to its final destination.你可以把行李直接托运到终点。Life can be likened to a journey with an ...
宇航员在失重的条件下工作。Astronauts work in weightless conditions.在失重的空间,细菌繁殖加快了.Bacterial reproduction is accelerated in weightless space.许多宇航员都证实了失重的兴奋感.Many astronauts have testified to the exhilaration of weightlessness....