长距离输油管道一般需要给油泵(设在首站)和主输油泵两种。

In general, a long distance oil transporting pipeline needs both feeding pumps (installed in the first pumping station) and main delivery pumps.

youdao

长距离输油管道一般需要给油泵(设在首站)和主输油泵两种。

In general, a long distance oil transporting pipeline needs both feeding pumps (installed in the first pumping station) and main delivery pumps.

youdao