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单词
radiation-bounded nebula
释义
radiation-bounded nebula
radiation-bounded nebula
[
‚rād·ē′ā·shən ¦bau̇n·dəd ′neb·yə·lə
]
(astronomy)
An emission nebula whose central star is not hot enough to ionize the entire cloud.
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更新时间:2025/3/2 1:08:44