tapered string – phrases

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Terms containing tapered string | all forms | exact matches only | in specified order only

Subject	English	Chinese
dril.	reverse tapered string	倒装钻柱倒塔式
oil	tapered string	塔式钻柱
oil	tapered string	变径管柱
tech.	tapered string of drill pipe	变径钻管 (组)
oil	two sizes tapered string	双径塔式管柱