Results:In the three measurements, the peak measurement method had the highest reliability, the best repetition, the least sensitivity to noise, and not to be influenced by threshold setting up.
结果：三种测量方法中，以最大值法的可靠性最高，重复性最好，对噪声的敏感性小，且不受阈值设置的影响。
Through field test, the reliability of metal material separation is affirmed by sclerometer testing repetition measurement. Moreover, ejection experiments are made in shooting range.
通过现场试验，以硬度计检测复检确认了金属材料分选仪的可靠性，并进行靶场退壳试验。
This paper introduces the repetition measurement of geodetic monitoring net of Huang Lashi land slide by GPS. The accuracy comparison of results obtained by GPS and normal surveying method is given.
介绍运用GPS复测黄腊石滑坡大地形变网，并将其测量成果与常规方法作精度比较。
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