引起水电机组振动的原因复杂，目前主要是通过转速试验、负荷试验和励磁试验等试验手段来判别机组的振动故障。
Due to complexity of hydroelectric units vibration reasons, vibration fault is distinguished mainly by means of rotate speed experiment, load experiment and excitation experiment et al at present.
提示MEP技术可做为脑血管疾病患者中枢运动神经系统功能判别的一项客观检查手段。
It is suggested that the technique of MEP might be used as an objective check in the evaluation of motor nervous system function of the patients with cerebral vascular diseases.
这种形貌特征有助于判别加载方式的类别，明确铸铁断裂的机理，是失效分析的重要手段。
The characteristics of morphologies are helpful to judging loading mode sort, defining fracture mechanism of cast iron, so they are important means for the failure analysis.
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