Making the bulbs requires workers to handle mercury in either solid or liquid form because a small amount of the metal is put into each bulb to start the chemical reaction that creates light.

制造这些灯泡需要工人们直接处理固态或液态的水银，因为每个灯泡中要封入小量的该种金属用来发生化学反应以发光。

youdao

Making the bulbs requires workers to handle mercury in either solid or liquid form because a small amount of the metal is put into each bulb to start the chemical reaction that creates light.

制造这些灯泡需要工人们直接处理固态或液态的水银，因为每个灯泡中要封入小量的该种金属用来发生化学反应以发光。

youdao