Investigates the matching calculation of electromechanical transmission system for electric cars.研究电动轿车机电传动系统匹配计算方法.Microsystem or micro electromechanical system ( MEMS ) is briefly introduced.本文简要介绍微系统的涵义、发展和主要特点.Electr...
I moved away from the shack and picked my way among the rubble.我离开木屋，小心地走在瓦砾间。He picked up his suitcase and climbed the stairs.他拎起手提箱,爬上了楼梯.The snake picked up its head and stuck out its tongue which gave everyone a frig...