减缩容量抽头

[电] reduced capacity tap

jiǎn suō róng liàng chōu tóu ㄐㄧㄢˇ ㄙㄨㄛ ㄖㄨㄥˊ ㄌㄧㄤˋ ㄔㄡ ㄊㄡˊ