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Terms for subject Drilling containing 返回 | all forms | in specified order only
ChineseEnglish
动力返回打开power return unseat
固相返回管路solids return channel
急速返回snapback
返回泥浆no returns
泥浆无漏失回返full returns
返回冲程return stroke
返回指令bridging order
返回returns
返回returned
向上返回通道return passageway
钻井液返回地面时间drilling fluid to surface time