It is important for majoring pipeline construction and drawing up the craft of hot crude oil transportation.

这对于优化管道建设和制定科学合理的热油输送工艺具有重要的作用。

youdao

It is important for majoring pipeline construction and drawing up the craft of hot crude oil transportation.

这对于优化管道建设和制定科学合理的热油输送工艺具有重要的作用。

youdao