在建立故障模式测试模型的基础上，提出了样本集的测试覆盖充分性度量和准则。
Based on the setting up o failure mode's testing model, the adequacy measurement and criterion of test cover for the sample set are proposed.
对齿轮箱做振动测试和分析，通过模式识别找到齿轮箱损坏时呈现的特性，为齿轮箱故障诊断提供依据。
Vibration data acquisition and signal processing has been done for gear box, by criterion of fault model, we find the characteristic of fault gear box and make contribution to fault diagnosis for it.
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