多晶硅是细小硅晶的集合体。
Polycrystalline silicon is an aggregation of small silicon crystals.
结果表明，四川软玉猫眼主要由微晶隐晶质透闪石矿物集合体组成；
The results indicate that the nephrite cat's eye mainly consists of aggregates of microcrystalline-cryptocrystalline tremolites.
结果表明，四川软玉猫眼主要由微晶隐晶质透闪石矿物集合体组成；
The results indicate that the nephrite cat's eye mainly consists of aggregates of microcrystalline-cryptocrystalline tremolites.
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