暗星云的英文
dark nebula
obscure nebula
例句与用法
- The investigation of dark nebulas has been facilitated by a new discovery .
对暗星云的研究被一种新发现所推进。 - This can be a useful technique for seeing faint " nebulosity " - it ' s often a lot easier to see such nebulosity as faint shading against a white background rather than as " not quite black " against a black background
这个选项对于看暗星云是十分有用的-暗星体显示在亮背景上比“不是非常黑”的暗星体显示在黑背景上要容易观察的多。
百科释义
暗星云是星际云()的一种,他的密度足以遮蔽来自背景的发射星云或反射星云的光(像是马头星云),或是遮蔽背景的恒星(像是煤炭袋)。
详细百科解释