letdown line
基本解释
- [土木建筑工程]下泄管线
英汉例句
- What could have been the highlight of the line-up of politicians, Congressman Paul Ryan, turned out to be a letdown.
FORBES: At National Review Institute Gathering Conservatives Yell Stop. But Are Voters Listening?
权威例句
词组短语
- letdown line isolation valve 下泄管线隔离阀
短语
专业释义
- 下泄管线