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危险化学品安全评价的必要性

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';}if (chkdiv('placard')) {document.getElementById('placard').innerHTML='不论哪一种评价方法，其主要内容不外乎以下4个方面：危险的识别、危险的定量、定量化的危险与基准值比较、提出控制危险的措施。';}if (chkdiv('txml')) {document.getElementById('txml').innerHTML='

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