1·The classification, operation philosophy and the characteristics of various common dust precipitators were described and their application in production practice introduced.
简述了常见除尘器的分类、工作原理及各自的特点，介绍了除尘技术在实际生产中的应用情况。
2·The phenomena of back corona and corona obstruction often take place in electric precipitators of coal-fired power plants and lead to low dust removal efficiency.
燃煤电厂所使用的电除尘器常常会出现反电晕和电晕封闭现象，导致除尘效率不高。
3·The factors having effect on the secondary current of the electric precipitators include mostly the nature of flue gas and dust, operation conditions, equipment conditions.
影响电除尘器二次电流的因素，大致有烟气性质、粉尘性质、运行情况和设备情况。