Adamson points out that the hardness of an overlay and concrete are not the same, therefore the harder the surface, the cleaner the cut.

亚当森指出，一个覆盖和具体的硬度不一样，因此很难从表面上看，清洁的削减。

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Electromagnetic testing and ultrasonic testing are the main points for materials hardness, hardness depth, crystallite size, limiting intensity etc.

对材料硬度、硬化层深度、晶粒大小、极限强度等主要采用电磁检测和超声检测。

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The equipment is automated (and quite expensive,) but the results are repeatable and generally consistent with Shore a results within about five hardness points.

其设备是自动的(也相当昂贵)，其结果是可重现的，并在大约五个硬度点内和Shore A的结果有很好的一致性。

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