충전

〔充塡〕

1. filling in; filling up
An act of stuffing a crack or space by filling it.

2. recharging
An act of paying money to refill the amount in a fare card, etc., so that it can be used.

3. filling in; filling up
In a mine or pit, an act of filling in the dug space with sand or rocks, after digging out mineral resources.