noncrystalline

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noncrystalline

1.Structurally, most polymeric materials are crystalline, but some consist of mixture of crystalline and noncrystalline regions.2.The term describing the density of ceramics that includes its porosity and both crystalline and noncrystalline phase is（）.3.Amorphous metals are non-crystalline, and have a glass-like structure. Like common glasses, amorphous metals are electrical insu