形容词
中文翻译：多晶的
同义词：
['multiple', 'polymorphic']
例句：
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1.The crystals are polycrystalline, which means they have many different shapes and sizes.
这些晶体是多晶的，意味着它们有很多不同的形状和大小。
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2.Polycrystalline materials are often used in electronics because of their high strength-to-weight ratio.
由于其高强度重量比，多晶材料常用于电子领域。
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3. The polycrystalline structure of the material allows for better heat conduction and dissipation.
该材料的多晶结构有利于更好的热传导和散热。