Once the collision is over, the orbits return to their normal shape, and electrons have to absorb energy to stay in the new higher orbit.
碰撞一旦结束，轨道就恢复到正常的形状，而电子必须吸收能量才能保持在新的高轨道上。
Once the collision is over, the orbits return to their normal shape, and electrons have to absorb energy to stay in the new higher orbit.
碰撞一旦结束，轨道就恢复到正常的形状，而电子必须吸收能量才能保持在新的高轨道上。
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