| 单词 | nitre crystal |
| 释义 | > as lemmasnitre crystal ΘΚΠ the world > the earth > minerals > types of mineral > nitrates > [noun] > potassium nitrate nitrumOE salpetrec1325 sal-nitre1416 saltpetre1501 peter in roche1554 salt nitre1601 nitre1617 roche petre1634 rock petre1667 Smyrna earth1735 nitre crystal1869 1869 Philos. Trans. 1868 (Royal Soc.) 158 670 Two ounces of nitre crystals were added to two ounces of water in a clean flask. 1873 C. G. Leland Egyptian Sketch-bk. 180 If you will take a nitre crystal, you will see that it consists of two pyramids joined at the base. < as lemmas |
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