[电] moditied constant-voltage charge
xiū zhèng cháng shù diàn yā chōng diàn ㄒㄧㄡ ㄓㄥˋ ㄔㄤˊ ㄕㄨˋ ㄉㄧㄢˋ ㄧㄚ ㄔㄨㄥ ㄉㄧㄢˋ