| 1. | Mount battie without losing its definition would take on a blue luminosity .
远处的巴蒂山沉浸在一派蓝茫茫的暮蔼之中，轮廓朦胧。
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| 2. | Mount battie without losing its definition would take on a blue luminosity .
远处的巴蒂丹山沉浸在一派蓝茫茫的幕霭之中，轮廓朦胧。
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| 3. | The cloud should then have an infrared luminosity thousands of times the sun's bolometric luminosity .
云的红外光度应为太阳热光度的几千倍。
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| 4. | The quasars cannot shine for longer than a few million years with their present luminosity .
在几百万年以后，类星体将不可能具有他们今天那样的发光度。
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| 5. | Astronomers tacitly assume that stars of the same luminosity and color all have the same mass .
天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。
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| 6. | Catherine could think of nothing of the kind, and morris's luminosity seemed almost pitiless .
凯瑟琳当然一筹莫展，莫里斯已把问题说得清楚明白到了毫不留情的地步。
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| 7. | As soon as the contracting cloud becomes opaque to its own infrared radiation, its luminosity will drop abruptly .
一旦收缩云变得对它的红外辐射不透明时，它的光度便要急剧地降低。
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| 8. | Paradoxical as it may seem, the value of a star's luminosity does not depend on the nuclear reactions taking place in the interior .
看来十分奇怪的是，恒星的光度竟然与发生在内部的核反应无关。
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| 9. | In this situation astronomers tacitly assume that stars of the same luminosity and color all have the same mass .
在目前的状况下，天文学家心照不宣地默认，光度和颜色都相同的恒星具有相同的质量。
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| 10. | Some celestial bodies similar to galactic nebulas but without any luminosity sometimes reveal their presence as dark patches obscuring the light of stars beyond them .
某些与银河星云相似但不发光的天体，有时看来象块黑色补丁，遮住了周围的星光。
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