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Terms for subject Drilling containing first | all forms | exact matches only
EnglishChinese
at first hand直接的
first aid kit急救箱
first aid stretcher急救担架
first-aid treatment急救措施
first cost成本
first gear第一速度齿轮
first spud一次开钻
first stage flexible plug一级软胶塞注水泥用套管附件

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