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heliometer的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
Noun:
- an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope
之上游戲內容獨代作品，受著作權庇護，圖片侵權必究
- 下面熱點話題
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