名词
中文翻译：Unknown
同义词：
['暗线光谱，暗线光谱例句：1. The dark-line spectrum of the star is a mystery that scientists are still trying to solve.（这颗星的暗线光谱是一个科学家仍在试图解开的谜。）']
例句：
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1. The dark-line spectrum of the star is a mystery that scientists are still trying to solve.
这颗星的暗线光谱是一个科学家仍在试图解开的谜。
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2. The dark-line spectrum of the star is a mystery that scientists are still trying to solve.
这颗星的暗线光谱是一个科学家仍在试图解开的谜。
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3. The dark-line spectrum of the star is a mystery that scientists are still trying to solve.
这颗星的暗线光谱是一个科学家仍在试图解开的谜。