与气-液系统不同的是，在流化床中气泡和连续相之间有气体交换。
As opposed to gas-liquid systems, there is an interchange of gas between bubble and continuous phase in fluidized beds.
氧化亚氮(N2O)是一种对大气环境有很大破坏作用的污染气体，煤的流化床燃烧是其重要来源。
Nitrous oxide (N2O) is a pollutant gas which has very strong destruction influence on atmosphere environment. Coal combustion in fluidized beds is an important resource for N2O.
扩散模型或者理想混合级模型能否满意地表示气体在流化床中的性状是可以怀疑的。
It is doubtful that the diffusion or ideal mixing stage models can satisfactorily represent the behavior of gas in fluidized beds.
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