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。

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.

youdao

如燃煤电厂的烟尘排空率由目前的24.6%降至1%，则两个工厂所致公众辐射剂量大致相当。

If the ash emission ratio of the latter decreases from 24.6% to 1%, public exposure doses of the two plants would be nearly equal.

youdao