| 单词 | 氨酸 |
| 释义 | 〔triiodothyronine〕A thyroid hormone, C15H 12I 3NO 4, similar to thyroxine but more potent, used in the treatment of hypothyroidism. 三碘甲腺氨酸：一种甲状腺激素，C15H 12I 3NO 4，类似于甲状腺素，但生理作用较之为快且强，用于治疗甲状腺机能减退 〔nitrogen〕A nonmetallic element that constitutes nearly four fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas, N2, in various minerals and in all proteins and used in a wide variety of important manufactures, including ammonia, nitric acid, TNT, and fertilizers. Atomic number 7; atomic weight 14.0067; melting point -209.86°C; boiling point -195.8°C; valence 3, 5. See table at element 氮：一种非金属元素，按体积计算约占空气的五分之四，是一种无色、无味几乎为惰性的双原子气体，N2，存在于各种矿物和所有的蛋白质中，广泛地运用于各种重要的生产中包括生产氨酸、硝酸、黄色炸药以及化肥。原子序数7；原子量14.0067；熔点-209.86°C；沸点-195.8°C；化合价3,5 参见 element |
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