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；
2
Maybe you're not looking at a reaction, but you've got some new compound, and you're looking at it go from liquid to solid or to gas.
也许你研究的不是一个反应，但你得到了一种新的化合物，你看着它从液体变成了固体或气体。
3
Vortex and Pulsed Reaction Equipment (VPRE) was presented. The flow pattern and characteristics for gas-liquid or gas-liquid-solid system in VPRE were analyzed.