The fire work technology of soil blocking and vapour replacing for pipe maintenance is introduced in the paper.

介绍了输油管道检修中的泥土封堵动火与蒸汽置换动火技术方法。

youdao

The fire work technology of soil blocking and vapour replacing for pipe maintenance is introduced in the paper.

介绍了输油管道检修中的泥土封堵动火与蒸汽置换动火技术方法。

youdao