Through the contrast test, the seepage coefficient from this method has the very good relevance to the conventional pumping test.

通过对比试验，该方法所测得渗透系数与常规抽水试验渗透系数数值有很好的相关性。

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Method: the research used the random contrast and single-blinded test.

方法：本研究采用随机、对照、单盲临床试验方法。

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The contrast method of simulated accelerated test and sample test has been used to investigate contacting surface strength of gears and both similarities and differences have been found between them.

用模拟快速试验与实际试件试验的对比方法，对齿面接触强度进行了研究，表明两者之间有异同之处。

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