魏: 名词1.(周朝国名) wei, a state in the zhou dynasty2.(三国之一) the kingdom of wei (220-265), one of the three kingdoms3.(北魏) northern wei (386-532)4.(姓氏) a surname 短语和例子魏源 wei yuan
电动机: electric motor; motor (俗称“马达; 电滚子”)◇电动机并联法 parallel connection of the motors; 电动机效率 motor efficiency; 电动机增益 motor gain; 电动机转子 motor rotor