Water becomes ice when the temperature drops below the freezing point.

气温降至冰点以下时，水就会结冰。

Without it, the average temperature on Earth would be below the freezing point of water!

若没有它，地球上的平均温度将低于水的冰点！

He then put the freezing point of water, which is higher than a salt mixture, at 32.

然后他把水的冰点设定在 3 2度，比盐水混合液的冰点稍高。

Salts lower the freezing point of water, as anyone knows who's thrown salt on an icy sidewalk.

盐可以降低水的凝固点，在寒冷的冬季向多滑的地面和过道撒盐就是利用的这个原理。

Too far, and the surface temperature will fall below the freezing point of water, causing the oceans to turn to ice.

太遥远的话，其表面温度又会低于水的冰点，导致海洋结冰。

South China is forecast to witness heavy rainfall, and some cities in the north are expected to hit the freezing point.

天气预报称华南地区会有强降雨，华北地区的一些城市温度会降至冰点。

The temperature that determines whether you receive liquid or frozen precipitation is, of course, 32 degrees Fahrenheit, aka the freezing point.

决定你是遇到液体还是结晶体的温度当然是32华氏度，也就是冰点。

And differences in the composition, size, and position of those impurities can make the freezing point of water vary by several degrees.

这些杂质在构成、大小和位置方面的不同会让水的结冰点有几度的区别。

Basically, these chemicals lower the freezing point inside their cells, which prevents damaging ice crystals from forming.

基本上，这些化学物质会降低细胞内的冰点，从而防止形成有害的冰晶。

Don't worry, Alice! In this case, because of the incredibly high pressure in the core, the freezing point of iron is actually about 6000 degrees!

别担心，爱丽丝！由于地心处的极高压力，铁的凝固点高达6000度！

First of all, because they didn't really get it cold enough so it was just a few degrees below the freezing point.

首先，因为他们并没有真正把它弄得足够冷， 所以它只比冰点低几度。

Less obvious is the fact that sugar lowers the freezing point of water, reducing the amount of ice that forms in the mixture.

不太明显的是， 糖会降低水的冰点，从而减少混合物中形成的冰量。

Normally, the temperature in northeast Greenland, in April, is around minus 20 degrees Celsius, but that week, we had days where the temperature was above the freezing point.

通常，4 月份格陵兰岛东北部的气温约为零下 20 摄氏度，但是那一周，有几天的气温都在冰点以上。

Well, luckily for our aquatic friends, when the temperature outside falls below the freezing point of water, only the top layers of lakes or rivers typically freeze.

好吧，对于我们的水生朋友来说幸运的是， 当室外温度低于水的冰点时，通常只有湖泊或河流的表层结冰。

" First of all, " he explains, " because they didn't really get it cold enough, so it was just a few degrees below the freezing point" .

“首先，” 他解释说，“因为他们并没有真正把它弄得足够冷，所以它只比冰点低几度” 。

The sugar sucrose sets the standard for PAC, which corresponds to how much the freezing point is depressed by, say, one pound of sucrose dissolved in 100 pounds of water.

蔗糖为PAC设定了标准，它对应于溶解在100磅水中的一磅蔗糖降低多少凝固点。

You may walk into a room that is very cold and say, " It's freezing in here." You don't mean it's actually below 32 degrees Fahrenheit, which is the freezing point for water.

你可能会走进一个非常冷的房间说，“这里很冷。 ” 你并不是说它实际上低于 32 华氏度，这是水的冰点。