The main task of it is to measure the working parameter of active sonar and track the target.
其主要任务是侦察目标主动声呐的工作参数，对目标实施跟踪。
This paper analyses the working parameter adjustment principles of abroad and at home hydraulic impact machine, and shows their defects.
分析了国内外液压冲击机械工作参数调节原理，并指出其主要缺陷。
Owing to spatial confined, the paper enumerates air supply pressure and backpressure which influence the working parameter of the DTH hammer only.
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。
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