例句
英语六级真题
  • Bats, swallows and more are chemically preserved in the pose in which they perished, sealed in the deposits of sodium carbonate in the water.
    2017年12月六级真题(第三套)阅读 Section C
柯林斯高阶英汉双解学习词典释义
英汉词典释义
英英词典释义
  • Noun
    1. a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
行业词典
  • 医学: 钠:所有格为sodii。一种轻软的银白色碱金属元素,符号为Na,原子序数11,原子量22.990,比重0.971,原子价1,对氧和其他非金属有强亲和力。钠为细胞外体液中的主要阳离子。另见pump项下的sodium pump。钠盐是医药上应用最广的盐;未列于后的钠盐见各活性成分处;
    电力: 钠空穴效应;sodium-void effect;