研究背景唾液流速和唾液成分是影响唾液屏障的两个主要因素，也是反映唾液腺分泌功能的重要指标。
BACKGROUND salivary flow rates and components are two major factors affecting the salivary barrier, and also are parameters for evaluating the secretory function of salivary glands.
研究背景唾液流速和唾液成分是影响唾液屏障的两个主要因素，也是反映唾液腺分泌功能的重要指标。
BACKGROUND salivary flow rates and components are two major factors affecting the salivary barrier, and also are parameters for evaluating the secretory function of salivary glands.
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