在过去三十年中，他主要研究的是固态化学和物理及其科技应用。
For the past 30 years, his primary scientific research has been in the areas of solid-state chemistry and physics, and their applications to technology.
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。
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.
无论处于固态、液态或气态，水的化学成份都保持不变。
The chemical composition of water remains constant whether it is in solid, liquid or gaseous state.
应用推荐