safety firstengineering

• 安全技术

safety firstengineering的用法和样例：

例句

1. The relevant safety technique and the safety operaional procedures in cyclopentane blowing process of rigid polyurethane foam are introduced.
   介绍了聚氨酯硬泡环戊烷发泡工艺中相关的安全技术和安全操作规程。