casing scraper是什么意思 casing scraper怎么读
casing scraper的相关资料
CASabbr.高级研究证书(=Certificate of Advanced Studyabbr.标定空速(=Calibrated Air Speed)
Casile卡西尔
casing scraper的用法和样例
- From time to time a scraper is passed through the pipeline to remove this corrosion.
不时用清管器在油管内穿过,以清除这种锈蚀。
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