the only factors后面为什么要加affecting而不是to affect？ 为什么这个地方could情态动词后面要用be affecti...

be doing表将来，是会影响的意思。be done表被动，be affected才是被影响的意思。

In recent years, circulating fluidized bed (CFB) combustion with its unique clean and efficient advantages of rapid development, has been more widely used. Cyclone as a gas-solid separation equipment for industrial production has more than 100 years of history. Because of its greater than 5 on the non-fine particles of higher efficiency separation, the overall structure is relatively simple and relatively inexpensive operation and maintenance costs, and other outstanding advantages of the industry was widely used. Circulating fluidized bed (CFB) combustion technology and the rapid development of the Cyclone opened up a broader application of space.
Isolation is the circulating fluidized bed boiler one of the key equipment. Gray ensure good circulation of the furnace temperature uniform. Separation of high and low efficiency of the particles into the solid particles in the capture of a great impact, and then will affect the furnace heat transfer, the use of limestone and charcoal Burnout, so study the principles and characteristics is very meaningful.
Through the first circulating fluidized bed boiler ash recycling and the recycling rate, and the separation efficiency of the relationship between the rate cycle. Then proceed to the cyclone structure and the principle of separation, separation efficiency of the operation and characteristics of analysis, study its internal gas-solid flow and movement of the factors affecting its operations, in order to obtain a good cycle and ash from the best Efficiency and provide a theoretical basis. This paper also briefly introduced under the current circulating fluidized bed boiler cyclone and the latest developments in their respective characteristics.
应该是汉译英吧。呵呵