Coliforms in Material Spheres 大肠菌群定量标准物质
It can add unlimited number of material spheres and assign materials to objects swiftly.
它可以添加无限数量的材质球并迅速指派到物体。
These seeds are actually chondrules: millimeter-sized melted droplets of silicate material that were cooled into spheres of glass and crystal.
这些种子实际上是陨石球粒：冷却后变成玻璃球和水晶球的毫米级熔融状硅酸盐小液滴。
The material also has small spheres of porous silicon embedded in it. Their function is twofold.
该材料内嵌入小多孔硅球体，有双重作用。
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