pipe end aligner管: pipe; tube端: end; extremity对准: aim at; be directed at; trai ...器: implement; utensil; ware对准器: aligner; alignment machine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:管端对准器，即可在微信中查询翻译
