Unstable factor on food hygienic quality was analysed, it is and suggested that many effective measures and implement food hygienic quality.
分析了食品卫生质量不稳定的因素，提出了保证和提高食品卫生质量的一系列有效措施。
The hygienic condition of food wrapping paper directly concerns the quality and safety of the wrapped food.
食品包装用纸卫生与否，直接关系到被包装食品的卫生质量和安全。
The safety of vegetable pollution by heavy metals was evaluated referring to national food hygienic and vegetable quality gradation standards.
参照国家食品卫生标准和蔬菜质量分级标准，对蔬菜的重金属污染程度进行了安全性评价。
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