The use of two important limits;
使用两个重要极限；
Promotion L-M method is an important means to estimate the reliability of CNC lathes. The method of using two named confidence limits to estimate was put forward.
研究了基于推广的L - M法的数控机床的可靠性评价，提出了利用两个指定置信度下的下限折合方法。
Promotion L-M method is an important means to estimate the reliability of CNC lathes. The method of using two named confidence limits to estimate was put forward.
研究了基于推广的L - M法的数控机床的可靠性评价，提出了利用两个指定置信度下的下限折合方法。
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