英德
有道
百度
谷歌
图片
维基
百科
捞砂绳
[油气] sand line
- 用捞砂绳下入油井的油管中以刮去油管壁上的结蜡所用的装置。
A device used on a sand line in the tubing of an oil well to scrape the wax off the tubing. - 应用于捞砂绳或类似的钢丝绳的标志或指示标。用它指示一个特殊的深度或者作为一种方法表明在起出时绳的端部正接近地面。
A mark or marker applied to a sand line or similar wire rope to indicate a specific depth or as a means of indicating the end of the line is nearing surface during retrieval.
 |
 |
 |
 |
 |
 |
 |
中国词汇量第二的英语词典
更多精彩，登录后发现......
