The paper introduced the pneumatic logic control technology applied to auto spray device in roadway development.

介绍了用气动逻辑控制技术研制的煤矿掘进工作面自动喷雾装置。

youdao

The paper introduced the pneumatic logic control technology applied to auto spray device in roadway development.

介绍了用气动逻辑控制技术研制的煤矿掘进工作面自动喷雾装置。

youdao