| helium |
The empire of the grandfather of Dejah Thoris.
출처: www-2.cs.cmu.edu/People/rgs/mmars-gloss.html
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| helium |
The element helium, (Greek, meaning the sun) was named so because it was first discovered in the sun by spectrographics in 1868. Helium gas does not become liquid until the temperature reaches 4.2 K, about -269
출처: lanoswww.epfl.ch/studinfo/courses/cours_supra/note...
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