本文研究了茎秆层松散度和谷粒动能对谷粒分离的影响，得出了茎秆层具有一定的松散度是谷粒分离的先决条件。
This paper presents a series of tests for studying the effects of porosity of straw layers and kinetic energy of grain on grain- straw separation.
然而挤压装置仅能大体估计样品的新鲜程度，因为测量结果同样还要取决于包装材料的硬度及面包片装填的松散度。
However, the squeezing device gives only an approximation of freshness, since the reading also depends on the stiffness of the wrapping and the looseness with which the bread slices are packed.
拓扑模型中这些松散结合关系为单元和可利用需求类型之间提供了最大的灵活度。
These are loosely coupled together in the topology models to provide utmost flexibility between the unit and the available requirement types.
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