In general, the frequency of cleaning necessary, will depend on the quality of water used in the device as well as the quality of air used in the device and is present in the laboratory.
通常情况下，清洗所需频率取决于该装置所使用的水和空气的质量，在本实验室已有介绍。
2
To solve the problem of well bore cleaning during air and mist drilling, the test device is the key equipment and essential means.
解决空气雾化钻井井眼净化问题，试验架是关键装置、基础设备和必要手段。
3
The invention discloses an exhaust air duct cleaning system, which comprises an exhaust air duct, a dust collecting device, and a collecting device.