真空伏辊空气动力性噪声是造纸机的主噪声源。

The aerodynamical noise of vacuum couch roll is the major noise source of paper machine.

youdao

真空伏辊空气动力性噪声是造纸机的主噪声源。

The aerodynamical noise of vacuum couch roll is the major noise source of paper machine.

youdao