According to the specific circumstances of the evaluation object identification and analysis of dangerous and hazardous factors to determine the risk, the site of the harmful factors and forms of existence, as well as play a role in the way and change the law.

Based on the evaluation of the specific object identification and analysis of harmful factors to determine risk dangerous, harmful factors exist in the area and form, as well as the ways and change the laws.

According to appraisal object special details identification and analysis danger harmful factor, determination dangerous, harmful factor existence spot and existence form as well as react way and change rule.

According to the specific circumstances of evaluation of object identification and analysis of dangerous and hazardous factors, identify parts and with dangerous and harmful factors exist, as well as in the form of effective approaches and changes in law.

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