Terms for subject Electric machinery containing first

English	Chinese
first coil	原线圈
first coil	初级绕组
first critical speed	—阶临界速度
first order harmonic	—次谐波
first harmonic amplitude	基波振幅
first harmonic content	基波含量
first harmonic magnetic field	基波磁场
first harmonic mmf	基波磁势
first motion drive	直接传动
first oil	输入线圈
first-order circuit	—阶电路
first-order critical speed	—阶临界速度
first-order network	—阶网络
first paint	底漆
first pitch of coil	线圈后节距
first pitch of coil	线圈第一节距
first start	首次启动
first turn	首匝
first turn insulation	首匝绝缘
first winding	原边绕阻
Fleming's first rule	弗莱明第一定则