采用不稳定的全部气源压力。
采用直通式电磁阀，需用气源压力低，喷吹效果好。
Direct way solenoid valves are adopted with low pressure air needed and good spraying effects.
由于文章篇幅的限制，仅列出了气源压力、背压对空气锤工作参数的影响规律。
Owing to spatial confined, the paper enumerates air supply pressure and backpressure which influence the working parameter of the DTH hammer only.
应用推荐