PP is a semi crystalline material.

PP是一种半结晶性材料.

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Aerogols are a novel nanoporous, non - crystalline material , whose structure can be controlled at nanometer scale.

气凝胶是一种新型纳米多孔非晶态材料, 结构可控.

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Fluoroflogopite is a product made of cast mica crystalline material easily worked with metal cutting tools.

1氟代金云母是由铸态云母结晶材料采用金属切割工具加工而成的制品.

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