英语语法分析

Objective to evaluate the sanitary conditions of campus' refectories using the microbial methods.

目的采用微生物学检测方法评价学校食堂卫生状况。

To explore the model of magnitude classificatory management on food sanitation of school refectories.

探讨学校食堂食品卫生量化等级管理模式，为加强学校食堂食品卫生管理提供依据。

Methods By random sampling method, 9 refectories and 366 students usually having their lunch at schools were drawn from Fangshan District, an anonymous questionnaire survey was conducted among them.

方法采用随机抽样的方法，对房山区9所中小学校食堂及366名在校就餐的学生进行膳食及营养教育相关情况的问卷调查。