That period saw decreasing world temperatures.

那段时期世界气温下降。

At 200 meters, photosynthesis stops and temperature decreases from surface temperatures by up to 20 degrees Celsius.

随着深度增加水压逐渐增大，光线开始变得微弱到达200米时，光合作用停止温度比起水面温度。

17.Once they get there, their body temperatures decrease very very quickly.

一旦到达那里，他们的体温会非常快地下降。

This darkness will last for 10 years, which means no photosynthesis, the death of all plants, and temperature decreasing to a critical level.

这种黑暗将持续十年，这意味着没有光合作用，所有植物死亡，温度下降到一个临界水平。

As you add heat, the volume and temperature of the system increase, and as you remove heat, the volume and temperature decrease.

当您添加热量时，系统尺寸和温度会增加 它的温度，而当热量被移除时会降低。

So what do they do They go back to their own borough Once they get there their body temperatures decrease very very quickly.

那么他们做什么 他们回到自己的自治市镇 一旦他们到达那里，他们的体温就会迅速下降。

We want to shield that from the room temperature environment and get that decreasing temperature as we go into the heart of these systems.

我们希望将其与室温环境隔离开来， 并在我们进入这些系统的核心时降低温度。