光伏电池通常对光谱中的可见光和紫外线波段的光子受激性最好，但高频红外光子也能激发电流。
Photovoltaic cells are usually most responsive to photons in the visible and ultraviolet parts of the spectrum, but they can also respond to high-frequency infrared photons.
表明这一迹象的是撞击掀起的尘土中显示的红外线光谱中的一些谱线，其频率与水分子能量激发时所发出光线的频率相应。
The telltales are specific "lines" in the spectrum of infra-red light from the plume. These correspond to the frequencies of light given off when water molecules are energetically excited.
计算结果表明：激发发射辐射比化学发光辐射重要，红外辐射比可见光辐射重要。
The results calculated show: collisional excitation radiations emitted are more important than chemiluminescent radiations; infrared radiations are more important than visible radiation.
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