| 单词 | hydrogen air |
| 释义 | > as lemmashydrogen air ΘΚΠ the world > matter > chemistry > elements and compounds > hydrogen > [noun] hydrogen1791 hydrogen air1793 hydrogen gas1805 1793 T. Beddoes Observ. Nature & Cure Calculus 212 Arterial blood exposed to the contact of hydrogene air loses its vermilion colour. < as lemmas |
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