建筑板材EN13707认证 ... 2.Safety in case of fire 防火性 3.Hygiene，health and the environment 卫生健康及环境要求 4.Safety in use 使用安全 ...
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Develop ideas to involve children and teachers in improving school environment and incorporate health and hygiene into the school curriculum;
开发一些方法使小孩和老师们将其应用到改善学校环境活动中，并将卫生与健康知识结合到学校课程中；
The mental hygiene question is the public health and the social question, psychopath's recovery needs our each person's joint effort, must create a good social environment for the mental patient.
精神卫生问题是公共卫生和社会问题，精神病患者的康复需要我们每个人的共同努力，要为精神病人创造一个良好的社会环境。
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