就所包含晶粒数相同的多晶集合体来说，在确定晶粒随机取向时，选取不同的方法对它的各向异性程度也有一定的影响。
Even for the same number of grains when taking the different methods to determine the random orientation, the degree of anisotropy of simulated is different.
层理岩石是由一种或多种矿物晶粒、孔隙和胶结物等组成的集合体。
The physical and mechanical properties of layer rock and the acoustics characteristic have a close relationship.
菱镉矿的晶粒微小，一般只有几个微米，大者几十微米，常与菱锌矿、 硫镉矿共生或伴生在一起，呈疏松集合体、皮壳或薄膜状产出。
Otavite grains are very tiny in size, being commonly only several microns, and the large ones are several tens of microns.
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