dinitrogen
Alternative spelling of poll tax
(obsolete, poetic) The act of waking, or state of being awake. / The state of forbearing sleep, especially for solemn or festive purposes; a vigil.
(chemistry) the normal nitrogen molecule having two atoms / (chemistry, used in combination) two atoms of nitrogen as part of some other compound
plural of sniper rifle
分子状窒素(N2)は地球の大気の約78%を占め、常温では比較的不活性です。
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