| 释义 |
dental calculus短语¹⁸⁰⁰⁹⁸⁺¹
基本例句
牙垢,牙石,牙积石
The detection rates of gingival bleeding, dental calculus, periodontal pocket and periodontal attachment loss were93.
牙龈出血、牙石、牙周袋、牙周附着丧失的检出率分别为93。 dictall
It imply a flood of nicotine composition in the cigarette, the ream tooth surface becomes the harmful dental calculus, very affect your smiling face with the mouth cavity health.
香烟中含有大量的尼古丁成份，令牙齿表面形成有害牙垢，极其影响你的笑容和口腔健康。 hzpmm |