guohuaEconomist²⁹⁹⁰¹⁺⁴ 基本例句 果化¹⁰⁰ This paper introduces the improvement for preventing scale and clog of limestone- gypsum wet flue-gas desulfurization systems GGH in phase I of Guohua Sanhe Power Generation Co. 介绍了国华三河发电厂一期石灰石-石膏湿法脱硫系统 GGH防结垢堵塞改造及改造后的运行效果和出现的问题。 dictall