| 单词 | Orion molecular clouds |
| 释义 | Orion molecular clouds [ǝ`rī·ǝn mǝ`lek·yǝ·lǝr `klau̇dz] ASTRONOMY Two molecular clouds in the Orion Nebula; one has about 300,000 hydrogen molecules per cubic centimeter and contains the Becklin-Nengebauer object and the Kleinmann-Low Nebula, while the other is centered on a cluster of infrared sources. |
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