pendant pull switchpull-switch接线: wiring work a telephone swit ...开关: Q-switching前面接线开关: front connected switch穿线开关: feed-through switch调谐线开关: magic line switch下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:接线开关，即可在微信中查询翻译
