Why do we set a horizontal damp-proof course in a wall?

墙体中为什么设置水平防潮层？

youdao

The damp proof course is a double layer of locally available PE-film.

所谓防潮层，即是由两层当地可获得的聚乙烯薄膜组成。

youdao

Of course, just because a photograph reflects the world with perceptual accuracy doesn't mean it is proof of what spontaneously transpires.

当然了，仅仅因为一张照片所呈现的世界，具有知觉上的准确性，并不证明这就是自然发生的。

youdao

Of course, that's not the useful application for it, it's more of a proof of principle, but it does show you that you can put it in for studies in any organisms.

当然，这不是很有用的应用，这仅仅是一个原理上的证明，但它告诉你你可以把它,放到研究任何生物体中。

麻省理工公开课 - 化学原理课程节选

There are different kinds of proof, of course.

ECONOMIST: Bagehot

Probability is not proof, of course.

ECONOMIST: The universe, it appears, may not be alone

Of course, proof problems can be severe who keeps receipts for personal items?

FORBES: Dead Cruise Ship, Clogged Toilets, Scant Food, No Carnival