drill-hole returns井口: the mouth of a well pithead; ...返: return出: used as a complement泥浆: slurry; mud返出泥浆: return of drilling mud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:井口返出泥浆，即可在微信中查询翻译
