The PVC comes down here. Maybe a little corrugated sheet metal as a radiator here.

PVC从这儿下来，也许一点褶皱的金属片作散热器放这儿。

This is made possible through something called a lenticular lens – a corrugated sheet in which each ridge is made up of a convex – or outward-curving – lens.

这是通过一种叫做柱状透镜的东西实现的，柱状透镜是一种波纹状的薄板，其每个凸起处都由凸透镜（即向外弯曲的透镜）组成。

Our house was amongst clusters of houses made mostly of wood and corrugated metal sheets.

我们的房子位于主要由木头和波纹金属板制成的房屋群中。

And to help her mother, who had tried so hard to keep her in school by selling her only assets, a stack of corrugated iron sheets she had been saving in the hope of building a better home for her children.

为了帮助她的母亲，她一直努力通过卖掉她唯一的资产来让她继续上学，她一直在积蓄一堆波纹铁皮， 希望能为她的孩子们建造一个更好的家。