Mom! The dew point is 79.5 degrees. - Okay.

妈妈！露点是26.3摄氏度。 - 好的。

For instance, the air temperature, humidity and dew point will change significantly.

比如气温情况，还有湿度、露点。

The humidity is 90% with a dew point of 79.5 degrees.

湿度是90%，露点是26.3摄氏度。

The dew point is a lot more useful.

露点更有用。

So at the dew point, our metaphorical sponge would be full and a cloud can be born.

所以在露点，我们比喻的海绵 会充满，云会诞生。

And as this ejects out of the plane there's a little probe at the bottom that is going to collect all of our temperature, dew point, pressure, things like that.

它喷射出飞机时，在底部有一个小探测器，它会收集所有的温度、露点、压力，诸如此类的参数。

Only when the air cools down past a certain point — called the dew point — does this breaking-apart slow down enough for little clusters of water molecules to grow into droplets.

只有在空气冷却到特定温度——即霜点温度——才能令断键过程减缓到可以让一小撮的水分子凝结成水滴。

And while there are millions of five-molecule clusters in a golf-ball-sized volume of air at dew point, odds are that only one of those clusters will grow to a size of ten.

在霜点温度下，一个高夫球体积大小的空气中存在无数由 5 个分子组成的水汽团，其中只有一个水汽团最终能聚到 10 个分子。