英语词汇“BY Dra star”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	BY Dra star
释义	BY Dra star 天龙BY型星; 光谱型为K和M的带发射线的矮星，有准周期光变，光变幅小于 0.5目视星等，周期通常从短于1天至几天，光变曲线的形状在变化，表面有黑子活动。
随便看	ammonia gas development ammonia gas imjury ammonia gas maser ammonia gas mask ammonia gelatin ammonia gelatin(e) ammonia (-gelatine) dynamite ammonia gelatine dynamite ammonia generator ammonia gum ammonia helmet ammonia hemate ammonia hydrate ammonia hydroxide ammonia intoxication ammonia inversion transition ammonia is composed of nitrogen and hydrogen ammonia kinase ammonial ammonia laser ammonia leach-hydrogen reduction process ammonia leaching ammonia leaching process ammonia leak detector ammonia leak test

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