氢气是半导体生产过程中经常使用的气体,无色无臭,单凭人们的感官,不能察觉它的存在。可是,车间里氢气的含量达到一定浓度时,遇火就会燃烧,甚至爆炸,造成严重事故。对这类易燃、易爆气体,有无简便的检测方法呢?这个问题,过去我们没有认真研究。学习了毛主席关于无产阶级专政理论及有关教导,我们进一步认识到上层建筑 Hydrogen gas is often used in the semiconductor manufacturing process, colorless, odorless, people’s senses alone, can not detect its existence. However, the hydrogen concentration in the workshop reaches a certain concentration, the case of fire will burn, or even explode, causing serious accidents. For such flammable, explosive gases, there is no easy way to detect it? This problem, in the past we have not carefully studied. Studying Chairman Mao’s theory of proletarian dictatorship and the related teachings, we have further realized that the superstructure