密切值
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osculation value 密切值
osculation value model 密切值模型
Osculation value method is a good method to evaluate the quality of the public place sanitation because its principle is clear and results acquired from the method are accurate and reliable.
结论 ：密切值法原理清晰 ，结构严谨 ，结论可靠 ，是一种综合评价公共场所卫生状况的好方法。
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