松散系数（factor of loose）是指松散矿石的体积与矿石未松动时的自然体积的比值，反映了矿石由天然状态到爆破之后的松散程度，一般通过现场实测确定。
垃圾的松散系数较大，且在较大的变化范围内波动。
The coefficient of volume of garbage is relatively large and varies in a comparatively large range.
文中就松散颗粒介质的情况对反射系数进行了简化，得出了前人用唯象理论所获得的结果。
In case of the loose granular media, the reflection coefficient is simplifyed the result obtained is identical with that obtained by seniors from phenomenon theory.
在最高产量时，紧凑型玉米品种与松散型玉米品种相比具有叶面积系数大，干物质积累数量大，经济系数高等特点。
At same time, the leaf area coefficient, dry matter accumulation and economic coefficient of compact type corn variety is bigger than loosely type corn variety.
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