The paper summarizes the working process of outflow valve and heater gasket of second generation B737, analyses a routine malfunction and provides a train of analysis. 介绍了第二代B737飞机座舱增压系统后外流活门和加温垫的工作及控制原理,对实际维护中的一种典型故障进行了分析和研究。
The current price system makes the oxygen enrichment feasible economically and oxygen generation by absorption at variable pres-sure provides new routine of oxygen supply for blast furnace. 当今的价格体系使富氧在经济上已可行,变压吸附制氧为高炉用氧提供了新的选择。
Using Tongchuan coal with high sulfur content, experiments on SO_2 generation were performed in one-dimensional test rigs under both routine combustion as well as limestone injection conditions. 以高含硫的铜川煤为实验对象,在一维炉燃烧实验台上进行了燃煤SO2排放与喷钙脱硫的实验研究。
As an important kind of new sustainable development energy, wind power generation not merely can save the routine energy resources, but also may decrease pollution of the environment. Thus it can bring preferable economic benefits and society benefits. 风力发电是一种可持续发展的可再生能源,不仅可以节约常规能源,而且减少环境污染,具有较好的经济效益和社会效益,越来越受到各国的重视。