一次电压 [电] primary voltage ; voltage primary ; KV

一次电池 [电] primary battery ; [电] primary cell ; galvanic cell ; one-shot battery

一次电流 [电] primary current

额定一次电压 [电] rated primary voltage

额定一次电流 [电] rated primary current

一次电子 [物] primary electron

一次电路 primary circuit

一次电源 Primary Power Supply ; primary source

一次电流分布 primary current distribution

一次电离 primary ionization