potassium
英 [pə'tæsɪəm]
美[pə'tæsɪəm]
- n. [化学] 钾
英英释义
- 1. a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
实用场景例句
- These chemicals modulate the effect of potassium.
- 这些化学物质可以调节钾的功效。
柯林斯例句
- Fruits, vegetables, and wholegrains are rich in potassium.
- 水果、蔬菜和全谷物富含钾元素。
柯林斯例句
- The potassium content of foodstuffs is very variable.
- 食物中钾的含量差别很大。
辞典例句
- Gunpowder is composed of sulfur, carbon, and potassium nitrate.
- 火药是由硫 、 碳和硝酸钾组成.
辞典例句
- The succession of uranium to potassium ratio anomalies is at about two - mile.
- 铀钾比值异常延伸约达2英里.
辞典例句
- The potassium hydroxide electrolyte is forced into the cells just before use.
- 在开始使用前把氢氧化钾电介质压入蓄电池.
辞典例句
- Sodium and potassium are about the same in their chemical properties.
- 钠和钾的化学性质几乎是相同的.
辞典例句
- Alkalosis and potassium depletion may be pronounced.
- 可能有碱中毒和缺钾.
辞典例句
- The components of a potassium cycle vary greatly.
- 钾素循环的各个环节有很大的变化.
辞典例句
- The usual counter - ions are sodium, potassium and ammonium.
- 反 离子通常是钠, 钾和铵.
辞典例句
- They are alumino - silicates of sodium . potassium and calcium.
- 它们都是钾和钙的铝硅酸盐类.
辞典例句
- Calcium is also necessary to prevent leakage of potassium during the aging of beet slices.
- 甜菜薄片衰老时期,钙对于防止钾离子丧失,也极其必要.
辞典例句
- When wheat plants allowed to become deficient in potassium, pyruvate kinase activity increased.
- 当小麦植株令其缺钾时, 丙酮酸激酶活性随之升高.
辞典例句
- The first sign of potassium deficiency is a white speckling or freckling of the leaf blades.
- 缺钾的最初病症是叶片呈现白色斑痕或斑点.
辞典例句
- Potassium manuring may be less critical in continuous grass farming than in ley farming.
- 在多年生牧草地施用钾肥的迫切性比短期草地要小些.
辞典例句
中文词源
potassium 钾
来自potash,钾碱，-um,化学元素。
英文词源
- 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).
双语例句
- 1. These chemicals modulate the effect of potassium.
- 这些化学物质可以调节钾的功效。
来自柯林斯例句
- 2. Fruits, vegetables, and wholegrains are rich in potassium.
- 水果、蔬菜和全谷物富含钾元素。
来自柯林斯例句
- 3. No potassium did we find in this mineral.
- 在这种矿石中我们没有发现钾.
来自《简明英汉词典》
- 4. The potassium content of foodstuffs is very variable.
- 食物中钾的含量差别很大。
来自辞典例句
- 5. Gunpowder is composed of sulfur, carbon, and potassium nitrate.
- 火药是由硫 、 碳和硝酸钾组成.
来自辞典例句