单词：casing scraper
清管器
casing scraper的用法和样例：
例句
- 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。
单词：casing scraper 相关文章
A woman decorating her Christmas tree Monday was shot in her left arm when a bullet went through her living room window. Police said the incident occurred about 5:00 p.m. A .22 caliber shell casing was found across the street from the victim's home.
发表于:2019-02-06 / 阅读(374) / 评论(0)
365个英语简短小故事
365个英语简短小故事