Thermal spray can be carry out field repair, but equipment is large with noise level and operators require wearing the protection mask and breathing unit.
热喷涂也可以用于现场修复，但设备大、 噪声高，且设备操作者需戴防护罩和呼吸装置；
2
And meanwhile, add unit metal salt and plural metal salt in the reaction agent of the ultrasonic spray and the proportion added can be adjusted.
同时，在超声喷雾的反应液中，可以添加单元金属盐和多元金属盐，添加比例可调。
3
Coal-rock boring machine is able to achieve cutting, loading, reproduced transport, walking and spray Dust combined unit.