[电] capacity of battery

yuán diàn chí huò xù diàn chí róng liàng ㄩㄢˊ ㄉㄧㄢˋ ㄔˊ ㄏㄨㄛˋ ㄒㄩˋ ㄉㄧㄢˋ ㄔˊ ㄖㄨㄥˊ ㄌㄧㄤˋ