trace catcher痕量: trace捕集器: drip catcher; trap捕集器: drip catcher (落丝); trap◇捕集器电流 catcher current捕集器，制动器: arrestor (arrester)捕集器电流: catcher current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:痕量捕集器，即可在微信中查询翻译
