From the microscope, we can see that the combination between metal and ceramic are tight and simonized in group 1, 2, 3 and comparative group.

从扫描电镜可以观察到，实验组1、2、3及对照组中金属与瓷之间均有一明显的结合区域。

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From the microscope, we can see that the combination between metal and ceramic are tight and simonized in group 1, 2, 3 and comparative group.

从扫描电镜可以观察到，实验组1、2、3及对照组中金属与瓷之间均有一明显的结合区域。

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