“periodontitis”的概念、定义、翻译、参考文献-科学参考

单词	periodontitis
释义	periodontitis Encyclopedia 医学牙周炎释 periodontitis牙周炎一组临床表现为慢性炎症和牙周组织破坏的疾病。它们都是感染性疾病，有些人长期带菌却不发病，而另一些人却发生牙龈炎或牙周炎。
随便看	negative root negative rotation negative selection negative semi-definite negative semi-definite form negative semi-definite kernel negative semi definite matrix negative semi-definite matrix negative semi-definite operator negative semi definite quadratic form negative semi-definite quadratic form negative semi-definte quadratic form negative semi-orbit negative semi-trough negative sense single-stranded RNA virus negative sequence negative sequence current carrying capability negative side negative sign negative skewness negative skin friction of piles negative spinor negative stable matrix negative staining negative strand

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