Therefore, the roll surface is extremely hard and brittle and it is thermally unstable. In addition, it is highly crack sensitive because of the high hardness.
因此，辊子表面有极高的硬度、脆性及热不稳定性。另外，由于高的硬度使之具有高的裂纹敏感性。
Therefore, the paper suggests PCR amplification DNA is a highly sensitive and specific method for diagnosing tuberculous exudative pleurisy early and rapidly.
提示PCR扩增DNA技术对结核性渗出性胸膜炎是高度敏感和特异的早期、快速诊断方法。
Therefore, the paper suggests PCR amplification DNA is a highly sensitive and specific method for diagnosing tuberculous exudative pleurisy early and rapidly.
提示PCR扩增DNA技术对结核性渗出性胸膜炎是高度敏感和特异的早期、快速诊断方法。
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