Even if you have a light hand with the salt shaker, you probably get lots of sodium in processed or restaurant meals.
即使你口味清淡,也很有可能在食用加工食品或在餐厅就餐时摄入过多的钠。
Instead, it has an atmosphere made up of chemicals such as vaporized sodium, potassium and gaseous titanium oxide, which absorb light, but that still does not explain the planet's extreme blackness.
相反,TrES - 2b的大气层由气态钠、钾和三氧化钛这些可以吸收光线的化学物质组成,不过这也并不能为该行星极黑提供解释。
The standard states that the citric acid-sodium nitrate treatment is the least hazardous for removal of free iron and other metallic contamination and light surface contamination.
该标准声明:柠檬酸-硝酸钠处理在去除游离铁合其他金属污染和轻的表面污染物时,危险性最低。
So, for example, here we're showing rubidium and potassium and sodium plotted where we're plotting the frequency -- that's the frequency of that light that's coming into the metal versus the kinetic energy of the electron that's ejected from the surface of the metal.
让大家看来都是可以理解的事情,就是把不同金属的观测结果,画到一张图里面来,例如这里,我们展示的是钠,钾,铷的频率-这是照射金属的光的频率,和金属表面出射电子动能的关系。
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