This paper introduces briefly the career dangers in welding, such as burning, noise, electric shocks, fume and gases, which will damage the health of welders.
简要介绍了焊接操作中存在的多种职业危害，如灼伤、噪声、电击、烟尘和废气、辐射等，严重损害工人的身体健康。
Therefore, it has obvious damage to big rats' main organs when they inhale crude oil fume and gas fume, which may provide valuable bases for forensic medicine authentication.
大鼠吸入原油蒸气和汽油蒸气对主要器官有明显的损害作用，为法医学鉴定提供了有价值的依据。
Smoking fume can cause vascular endothelium damage and expression of ET-1 incenment.
吸烟可引起脑血管内皮细胞损伤，使内皮素1表达上调。
Smoking fume can cause vascular endothelium damage and expression of ET-1 incenment.
吸烟可引起脑血管内皮细胞损伤，使内皮素1表达上调。
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