受限空间内的所有动火作业必须要有动火作业许可证和受限空间作业许可证及作业危险性分析。

All hot work in confined space must have work Permits of the hot work and confined space and Job Hazard Analysis.

youdao

受限空间内的所有动火作业必须要有动火作业许可证和受限空间作业许可证及作业危险性分析。

All hot work in confined space must have work Permits of the hot work and confined space and Job Hazard Analysis.

youdao