按照玻尔氢原子理论，当电子绕核作加速运动时,会向外辐射电磁能量。
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More food was grown because new machines were invented during the Industrial Revolution.
He gets impatient ______ the people who don’t agree with him.
光电效应和康普顿效应都包含电子与光子的相互作用，对此可理解为两种效应中电子与光子组成的系统都服从动量守恒和能量守恒定律。
等高线一般不相交或重叠 , 只有在 等高线才可能出现相交情况。
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