定量的机械系统可靠性理论尚未取得突破性进展。
A breakthrough of the quantitative reliability theory of mechanical systems has not been achieved.
对C5112车床再制造前的机械系统可靠性进行了评价和预测。
The appraisal and forecast of the mechanical part reliability for the C5112 lathe were carried out.
该方法对于机械系统可靠性设计具有理论意义，对生产实际机械系统可靠度的计算具有实际指导意义。
The method is of important theoretical significance for their reliability design and provides guidance to their reliability calculation.
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