名词
中文翻译：光谱线位移
同义词：
['spectral shift', 'spectral displacement']
例句：
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1.The shift in the spectral line is due to changes in temperature and pressure.
光谱线的位移是由于温度和压力的变化引起的。
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2.The shift in the spectral line was used to identify the source of the light.
光谱线的位移被用来识别光源的来源。
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3. The shift in the spectral line has been observed in various types of stars.
光谱线的位移已经在不同类型的恒星中观察到了。