diverless techniques无: not have; there is not; be w ...潜: go underwater; hide under wa ...技术: technology; skill; technique ...无潜水员作业技术: diverless technique无潜水员的: diverless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:无潜技术,即可在微信中查询翻译