The discussion of impact mechanism of fractal characteristic on collapse flow behavior of granular material may offer a new idea for the study of granular flow system.
对系统组构的分形特征影响系统颗粒物质崩塌流动行为的机制进行了初步探索，为颗粒流系统的研究提供了新思路。
The mechanism of artificial soil represents the movement process of material balance, material conversion, material flow and circulation of materials in the human society and nature.
人造土壤机制体现出人类社会和自然界中，物质平衡、物质转化、物质流动与物流循环的运动过程。
As technical difficulty, the author makes a full experiment to research the auto shaped mechanism of perfusion material flow on the solar battery board.
作为技术难点，作者对灌注料在太阳能电池板上的自动成形机理进行了详尽地研究和试验。
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