众所周知,日本是富国,但国土狭小、人口密集,资源相对贫乏,由此日本的“点废成金”术为世人提供了绝好的样板。◇巧用海底碎石◇日本东北部在发生大地震和大海啸后,被冲垮的巨大水泥防波堤破裂成无数石块遗留在沿海海底。这些碎石大的重数十吨,根本无法拖走。渔民们叫苦连 As we all know, Japan is a rich country. However, with its small territory, dense population and relatively poor resources, Japan has provided an excellent model for the world. ◇ clever use of sea gravel ◇ northeastern Japan in the aftermath of the Great Earthquake and tsunami, was washed down huge breakwater breakwater into numerous stones left in the seabed. These large gravel weighing tens of tons, simply can not tow away. Fishermen called bitter company