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刮管器取出装置; 刮管器收发筒 | |||
刮屑收集器; 刮刀套 | |||
English thesaurus | |||
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A fitting in either end of a pipeline with a shut-off valve and a door to insert or remove a pipeline scraper which is pushed through the pipeline to clean it and increase flow efficiency. (Natural Gas Glossary, American Gas Association 2Xist) |
scraper trap : 2 phrases in 1 subject |
Oil / petroleum | 2 |