The first catalytic converters were called conventional oxidation catalysts.最初的转化器叫做常规氧化催化器.The air guards the catalytic converter from overload and possible resulting damage.空气防止了催化式排气净化器的过载及可能产生的损坏.It is known as catal...
This not only abbreviates catalytic cracking equipment, but also enhances the economical effects of refineries plant.这样不仅缓和了催化装置的操作, 而且可为炼油厂开发出新产品,创造经济效益.Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was s...