研究方法：理论分析法，对比试验法。
Methods employed are theoretical analysis and contrast experiment.
研究方法：理论分析法，对比试验法。
This study used the theoretical analysis and comparison testing methods to do the work, .
在与硬度法的对比试验中，进一步验证了电阻法的可行性。
The feasibility of this method is confirmed by comparison with microhardness method.
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