sleeve relay线: thread; string; wire继电器: electric relay; relay断线继电器: line-break relay; wire break relay; wire-break relay热线继电器: hot wire relay; hot-wire relay天线继电器: antenna relay unit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:套线继电器，即可在微信中查询翻译
