The reason, quite simply, is that the city tore down most of its old factories and literally started again, with newer facilities and desulfurization equipment.
原因很简单，沈阳拆除了大部分的旧工厂，重头再来上马了很多新设施和脱硫设备。
Cyclone separators are the key equipment for warranting that circulating fluidized bed boilers have a certain particle circulation rate, with good combustion and desulfurization efficiency.
旋风分离器是保证循环流化床锅炉具有一定颗粒循环倍率、燃烧效率、脱硫效率的关键设备。
Currently, oxidative desulfurization (ODS) was considered one of the promising processes for its mild reaction condition, simple equipment design, and highly efficiency.
目前，氧化脱硫法由于其反应条件温和、设备简单、脱硫效果好，有较为广阔的应用前景。
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