Meanwhile, ancient Persians built shallow insulated pools of water and utilized a technique known as sky cooling.

与此同时，古波斯人建造了隔热的浅水池，并利用“空气冷却”技术。

Seawater is captured in shallow ponds and allowed to evaporate by sun and wind.

海水收集在浅水池中，并风蒸发。

At night, the shallow pools would naturally radiate heat into the dry desert skies, causing them to dip below the ambient temperature and freeze.

夜晚，浅水池自然地向干燥的沙漠天空散发热量，使水温降至境温度以下并冻结。

Mystery surrounds why the skulls would've been placed there as, at the time, they would've been covered by a shallow pond.

谜团围绕着为什么头骨放置在那里，因为当时它一个浅水池覆盖。

Presently they came to a little clearing among the pines—another tiny green alp, solitary this time, and holding in its bosom a shallow pool.

不久，他来到了松树之间的一小块空地——又一座绿色的小阿尔卑斯山，这次是孤零零的，在它的怀抱中有一个浅水池。

One of the doors led to a cushy rodent pad complete with wood shavings, fresh produce and even Cheerios, while the other led to a shallow pool of water.

其中一扇通往带有刨花、新鲜农产品甚至燕麦圈的舒适鼠垫，而另一扇则通往浅水池。

If temperatures get too high for the mangrove rivulus in the shallow tropical pools it inhabits, it'll flip itself onto a bank and cool off in the shade.

如果温度对于它栖息的热带浅水池中的红树林溪流来说太高了，它就跳到岸边，在阴凉处降温。