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单词
X-ray astronomer
释义
Definition of
X-ray astronomer
in English:
X-ray astronomer
noun
An expert or specialist in X-ray astronomy.
Origin
1960s
.
Definition of
X-ray astronomer
in US English:
X-ray astronomer
noun
An expert or specialist in X-ray astronomy.
Origin
1960s.
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更新时间：2025/8/20 10:45:16