故多空压机机组可大大节省运行费用。

So many air compressor units can greatly reduce the operation cost.

youdao

我们得到三套发电机组，可是我们需要的比这多一倍。

We got three generating sets but we need as many again.

youdao

我们得到三套发电机组，可是我们需要的比这多一倍。

We got three generating sets but we need as many again.

youdao