临床牙氟中毒的特征是牙腐蚀和损斑。
Clinical dental fluorosis is characterized by staining and pitting of the teeth.
牙线洁牙是去除聚集在牙齿之间和牙龈底部牙斑的唯一办法。这些地方因牙刷接触不到会发生腐蚀。
Flossing is the only way to remove the plaque that accumulates between the teeth and below the gum line — areas where a toothbrush can't reach and decay often begins.
建立了监测应力腐蚀萌生过程的光学系统，介绍了主观散斑方法在应力腐蚀检测过程中的应用。
An optical system has been set up to observe the initial process of stress corrosion, the application of the subjective speckle technique in observation of stress corrosion has been introduced.
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