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单词 nitre
释义

nitre

/ˈnʌɪtə /
(US niter)
noun
Another term for saltpetre.The German U-boats were shooting on the boats, so most of the niter they were trying to import to make nitroglycerin was at the bottom of the ocean....
  • Various reflecting surfaces were used: polished metallic rocks such as obsidian, pyrite, and iron; rock crystal; and an alloy of rose copper and tin, plus an alchemical brew consisting of white arsenic, red tartar, and nitre.
  • Nitre, or niter, is also used to manufacture gunpowder.

Origin

Late Middle English: from Old French, from Latin nitrum, from Greek nitron.

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更新时间:2024/9/21 22:53:14