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词汇
optical observation
释义
optical observation
ˈɔptikəlˌɔbzə:ˈveiʃən
基本
例句
光学观测,光学观察
Because optical observations are impossible, speculation on the stellar content in dark clouds long received little attention.
由于不可能进行光学观测，所以关于暗云中恒星数目的推算长期以来不受重视。
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更新时间：2025/7/25 13:46:52