词族 · potassium
词形变化
中文词源
potassium 钾
来自potash,钾碱，-um,化学元素。
英语词源
- potassium (n.)
- metallic element, 1807, coined by English chemist Sir Humphrey Davy (1778-1829) from Modern Latin potassa, Latinized form of potash (q.v.). Davy first isolated it from potash. Symbol K is from Latin kalium "potash," from Arabic al-qaliy "the ashes, burnt ashes" (see alkali).
权威例句
- 1. These chemicals modulate the effect of potassium.
- 这些化学物质可以调节钾的功效。
- 2. Fruits, vegetables, and wholegrains are rich in potassium.
- 水果、蔬菜和全谷物富含钾元素。
- 3. No potassium did we find in this mineral.
- 在这种矿石中我们没有发现钾.
- 4. The potassium content of foodstuffs is very variable.
- 食物中钾的含量差别很大。
- 5. Gunpowder is composed of sulfur, carbon, and potassium nitrate.
- 火药是由硫 、 碳和硝酸钾组成.