它们不能收集多云天的散射阳光.They cannot concentrate the diffused sunlight of cloudy days.镜面把光反射回散射板.The mirror reflects light back to the scatter plate.我们现在对原子核的许多认识来自散射实验.Much of what we know about nuclei comes through scattering ex...
他幼时得过小儿麻痹症后双腿安上了支架。He wore leg braces after polio in childhood.他把牵引支架固定在船体上。He fixed the towing cradle round the hull.这墙可以作为你的照相机的支架.This wall will do as a rest for your camera....