名词
中文翻译：硬电子
同义词：
['hard ion例句：1. The hard electrons in the metal are responsible for its electrical conductivity.（金属中的硬电子负责其电导性。）']
例句：
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1. The hard electrons in the metal are responsible for its electrical conductivity.
金属中的硬电子负责其电导性。
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2.The hard electrons in the metal are responsible for its electrical conductivity.
金属中的硬电子负责其电导性。
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3.The hard electrons in the metal are responsible for its electrical conductivity.
金属中的硬电子负责其电导性。