- 双语例句
1、
We shall hardly even touch the captivating problems of modern extragalactic astronomy.
甚至几乎不涉及现代河外天文学中吸引人的课题.
——辞典例句
2、
Extragalactic nebula is invisible to the naked eye.
我们用肉眼是看不到河外星系的.
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3、
This Paper has Studied the observational parameters of 20 extragalactic H 2 O megamaser Sources.
研究了至今为止已发现的20个河外H2O超脉泽源的观测参数.
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