将DEM方法与颗粒碰撞传热模型结合，在颗粒层次上对密相流化床内的传热过程进行了较为系统的数值研究。
Combining with particle impact heat transfer model, DEM method is also used to systematically simulate the heat transfer process in fluidized bed at the level of particle.
本文采用不同的分析方法分析、研究了气固流化床中不同操作条件下的空隙率时间序列和颗粒碰撞压力时间序列。
The time series of voidage and particle colliding force at different operation conditions is analyzed and researched by statistic method-. power spectrum and chaos theory in this papers.
他伸手轻轻地触碰雕像的面颊，这轻微的碰撞如同蜘蛛的脚步一样轻柔，这时他的胫骨碰到了床框。
As he reached out to gently touch the sculpted cheek his shin nudged the bedframe, a touch delicate as a spider's step.
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