通过分析生物质热解的物理特性和运行条件，采用动力学模型和传热、传质模型，对生物质热解进行描述。
By analyzing the physical characteristics and the operation condition of biomass pyrolysis, the biomass pyrolysis is described using kinetic model and heat and mass transfer model.
从仿真结果可见，与缆绳吊放声纳系统简单分段的线性模型相比，有限元非线性模型能更准确地描述系统的物理特性。
The results show that the infinite-element nonlinear model can describe the system more accuracy than the simple separating segment linear model do.
在图像检索过程中提取与光照无关的、能够刻画物体表面物理反射特性的颜色特征，被称为颜色不变性描述。
The color features which are irrespective to the light and can portray physical surface reflect properties that extracted in the image search process named color Invariant Descriptor.
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