Blind the fuel pipe for repair.

把燃油管闷住进行修理。

youdao

But with some reasons, both of the pipe ends have blind area.

但因种种原因，钢管两端存在探伤盲区。

youdao

But with some reasons, both of the pipe ends have blind area.

但因种种原因，钢管两端存在探伤盲区。

youdao