单词：product molecules
单词：product molecules 相关文章
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. You've seen it on TV. Crime scene investigators show up at what might be a murder scene. There are blood spattersbut no body. Who's the victim? Now, a
Scientific American(十一)月
Smart Bandages to Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Scientists say new made-made materials equipped with sensors could turn bandages into a valuable tool for health care workers. Simple bandages are usually seen as the fir
2016年VOA慢速英语(三)月
Anti-Ebola Compounds Show Promise 抗埃博拉病毒化合物已初见成效 While the West Africa Ebola epidemic is believed to be winding-down, the search for new treatments and vaccines is not. One study is a U.S./Serbian effort to find an effecti
VOA标准英语2015年(五月)
The by-product of billions of years of production from the chemical smog factory in the upper atmosphere, the grains in Titan's dunes may literally fall from the sky. Like a rain of flash-frozen coffee grounds, they are swept by the wind into deep pi
自然百科2012年
Of all the plastic produced since the 1950s, less than 10% has been recycled. 20世纪50年代以来，产生的所有塑料中，只有不到10%得到回收。 The vast majority ends up being dumped, most of it in landfill. 其中大部分都成了垃
经济学人科技系列
Cement is a major component of concrete, the world's most widely used man-made material, an integral part of roads, bridges and buildings. But making cement requires heating limestone and other materials to very high temperatures, a process that rele
VOA标准英语2010年(一月)