危险因素和有害因素
Risk factors and harmful factors
以上为机器翻译结果，长、整句建议使用 人工翻译 。
介绍了焊接安全生产培训的重要意义，阐述了焊接作业的危险因素和有害因素。
The importance of welding safety training was introduced. Dangerous and harmful factors of welding operation were described.
youdao
应用推荐
模块上移
模块下移
不移动