螺杆泵地面驱动装置受力复杂，振源众多，常规的振动测试对于故障的定位与诊断精确度不高。
The surface drive unit of screw pumps features in complex stress and many vibration sources, so the traditional vibration test method cannot determine the diagnosis accurately.
柴油机结构复杂，振源众多，常规的振动分析及单项指标测试对于故障的定位与诊断精确度不高。
The diesel engine is a complicated machine with many vibration sources, so the traditional vibration analysis and single parameter test method cannot determine the diagnosis accurately.
振动测试是实现状态监测与故障诊断的重要手段。
Vibration measuring is the most common means of condition monitoring and fault diagnosis.
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