... liner mill 衬管磨铣器 liner packer 衬管封隔器 liner puller 缸套拉拔器 ...
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liner cup packer 碗状衬管封隔器
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The liner was cemented by cementing retainer after its annular was assured expedite by setting packer in liner and making circulation.
在尾管内下封隔器，循环确信尾管环空畅通后下入水泥承留器固井。
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