Sugar is a crystalline substance, differing from starch by its sweet taste and solubility in cold water.

糖是一种水晶物质，与淀粉不同，它味道甘甜且可溶于冷水。

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A white crystalline substance that is soluble in water and alcohol, niacin and niacinamide are both readily absorbed from the small intestine.

烟酸和烟酰胺是一种白色结晶体，都是很容易从小肠吸收的。

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This paper introduces the 39th IPhO experiment test, which using the differential thermometer to measure the solidifying point of a crystalline solid substance and an efficiency of the solar cell.

第39届国际物理奥林匹克竞赛实验试题是：利用差示温度计法来测定固态晶体物质的凝固点和测定太阳能电池的效率。

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Last time we reach the third law which is telling us that we can't quite get to zero degrees Kelvin .but that as the temperature approaches zero degrees Kelvin, the absolute entropy of a pure substance in perfect crystalline form is zero.

上次课我们得到了热力学第三定律,这个定律告诉我们我们无法,达到0K的温度,但是在我们接近绝对零度的过程中，以完美晶体形式存在的纯物质的绝对熵,也趋向于零。

麻省理工公开课 - 热力学与动力学课程节选