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The results show that the method is feasible and effective to achieving the on-line motoring and diagnosis of valve train faults.
诊断结果表明该方法是可行的，便于实现柴油机气阀机构故障的在线实时监测与诊断。
Objective To research the ultrasonic image feature and diagnosis value in infective endocarditis valve excrescence.
目的探讨感染性心内膜炎心脏瓣膜赘生物的超声声像图特点及诊断价值。
The accuracy of traditional spectrum analysis for the diagnosis of reciprocating pump valve is not satisfied for the interference of the noise and the vibration of the adjacent parts.
往复泵泵阀振动信号的常规频谱分析，由于故障特征信息往往被淹没于强大的噪声以及相邻部件的干扰而使诊断精度大打折扣。
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