front connected switch前面: in front; at the head; ahead接线: wiring work a telephone swit ...开关: Q-switching前面接线式: front connection type接线开关: pendant pull switch; pull-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:前面接线开关，即可在微信中查询翻译
