英语词汇“cygnus loop”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	cygnus loop
释义	cygnus loop 基本例句天鹅圈 About 7,500 years ago that star exploded in a supernova leaving the Veil Nebula, also known as the Cygnus Loop.大约7,500年前，一颗恒星发生超新星爆炸，并形成了面纱星云，又被称为天鹅圈。
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