potassium是什么意思？

potassium

英[pəˈtæsiəm] 美[pəˈtæsiəm]

• n. <化>钾；

例句

• No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。
• 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.
• Chemically, elements like fantasying ( potassium ) and illumining ( aluminum ) are added and take them ( taken ) away. 化学方面, 其原理如同 钾 和铝的添加和分离.
• The potassium content of foodstuffs is very variable. 食物中钾的含量差别很大。
• Fruits, vegetables, and wholegrains are rich in potassium. 水果、蔬菜和全谷物富含钾元素。
• Sodium potassium tartrate and tartaric acid are osmotic laxatives. 酒石酸及其钾盐是有渗透作用的泻剂.
• Gunpowder is composed of sulfur, carbon, and potassium nitrate. 火药是由硫 、 碳和硝酸钾组成.
• The reaction conditions on oxidation of 2 - methylpyridine to 2 - acid by oxidation of potassium dichromate were studied. 研究了以2-甲基吡啶为原料,以重铬酸钾为氧化剂,利用化学氧化法合成 2- 吡啶甲酸的反应条件.
• Objective To determine application of modified low - potassium dextran ( LPD ) solution in heart - lung transplantation. 目的:探讨改良低钾右旋糖酐 ( LPD ) 溶液在心肺移植术中的肺保护作用.
• 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.

柯林斯高阶英汉双解学习词典释义

• N-UNCOUNT
  钾
  Potassium is a soft silvery-white chemical element, which occurs mainly in compounds. These compounds are used in making such things as glass, soap, and fertilizers.

英汉词典释义

• n.
  <化>钾
  No potassium did we find in this mineral. 在这种矿石中我们没有发现钾。

英英词典释义

• Noun
  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

行业词典

• 医学： 钾：碱族金属元素，许多钾盐被用做药物。钾是一种软的银白色金属，熔点为58°F，原子序数19，原子量39.102，比重0.87，符号为K。钾是肌肉及其他大多数细胞(细胞内液)的主要正离子。另见pump项下的sodium-potassium pump；