HN is a common virus, Coxsackie virus, other parts may cause respiratory tract infections.
HN病毒是一种常见病毒，会引起呼吸道等部位感染。
Conclusion: the HN 97 porcelain stain is smooth on the surface and firm in combination with body porcelain after firing.
结论：HN 97金属烤瓷外源性着色剂是一种表面光滑且与体瓷结合牢固的着色剂。
Conclusion: the HN 97 porcelain stain is smooth on the surface and firm in combination with body porcelain after firing.
结论：HN 97金属烤瓷外源性着色剂是一种表面光滑且与体瓷结合牢固的着色剂。
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