单词：asphaltic pyrobitumen
单词：asphaltic pyrobitumen 相关文章
Every winter some twenty million tons of salt are dumped on America's road.That sodium chloride melts the ice, so it prevents its formatin, helping to prevent accidents. But road salt has its downside. This is not very economical because salt is main
2016年Scientific American(一)月
If all goes well, the inventors hope to develop the idea and make the sections entirely from recycled plastic. 如果一切顺利，那么投资者希望开发此想法并完全利用回收垃圾制造这些节段。 Paths, car parks and railway plat
经济学人科技系列
By Phuong Tran Praia, Cape Verde 09 June 2007 Off the coast of West Africa, transport officials in the island nation of Cape Verde have begun a road improvement program. They say colonial-era cobblestone roads do not make much sense anymore, and are,
2007年VOA标准英语（六月）
Science and technology. 科技。 Quieter traffic. 更安静的交通。 When the rubber hits the road. 当橡胶遇上公路。 Turning old tyres into new roads can help cut noise pollution. 把旧轮胎建成新式道路可以减少噪音污染。
经济学人综合
Science and technology 科学技术 Quieter traffic 更安静的交通 When the rubber hits the road 当橡胶遇上公路 Turning old tyres into new roads can help cut noise pollution 把旧轮胎建成新式道路可以减少噪音污染 AROUND one
经济学人科技系列
Dialogue 1 Mark: Hey, Jingjing. You wanna come bungee jumping with me and my friends? We're heading out this afternoon. It's gonna be so much fun! 马克：嘿，京晶。你想加入我和我的朋友们去蹦极吗？我们今天下午出发，肯定
英语PK台