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
一次继电器 primaryrelay
一次性电池 primary cell ; primary batteries ; Primary & Dry Batteries
在那里，她把手机放在一个店里，每充一次电需要30美分的钱。
There, she dropped off her cellphone at a store that recharges phones for 30 cents.
有一次万圣节，他为我做了个电南瓜，还把它装在一个扫帚把上。
For one of my Halloween parties, he created an electrical pumpkin and mounted, it on a broomstick.
下一次或许我们，会在课前把它充上电。
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