amorphous (non-crystalline) substance.

listen to the pronunciation of amorphous (non-crystalline) substance.
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Определение amorphous (non-crystalline) substance. в Английский Язык Английский Язык словарь

Amorphous (non-crystalline) substance.
glass

A popular myth is that window glass actually is an extremely viscous liquid.

amorphous (non-crystalline) substance.
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