操作危险化学品管理系统并提交危险化学品报告。
Operate chemical management system and submit chemical report.
参与者关于煤油安全使用的知识较少，操作危险性高，对伤害危险的感知能力一般。
Participants had relatively low levels of knowledge about paraffin-related safety. They had high levels of unsafe practice and their perceived risk of injury was moderate.
通常采用的传统测量方法，如光学参比法和围尺法，其操作者的劳动强度大，操作危险，测量效率低。
The traditional methods, such as optical reference method, enclosed ruler method, are hard and dangerous to operator, and their measuring efficiency is low.
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