The reduction processes consist of solid-solidreaction, liquid-solidreaction, reaction in molten steel and liquid-liquid reaction.
反应过程包括：固固反应、液固反应、铁浴反应和液液反应。
2
Polymer grade p-phthalic acid can be synthesized by p-xylene directly oxidation in gas-liquid-solidreaction system with stirred tank reactor.
氧化工艺采用气液固系搅拌式氧化反应器，可由对二甲苯氧化直接制备聚合级对苯二甲酸；
3
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.