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for subject
Mining
containing
衬
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all forms
Chinese
English
可回收式密封
衬
套
retrievable pack off bushing
带眼
衬
管
perforated liner
无眼
衬
管
blank liner
未固结
衬
管
uncemented liner
衬
管顶部
top of liner
预充填砾石
衬
管
prepacked gravel-packed liner
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