fast acting relay快速: fast; quick; high-speed; spe ...用: 40分钟跑完全程 run the course in 4 ...断电器: cut-out; disconnector快速用继电器: fast-acting relay快速断电器: quick-break cut-out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:快速用断电器，即可在微信中查询翻译
