单词：Arbed lance carbon injection process
单词：Arbed lance carbon injection process 相关文章
Scientists have traveled to the mountains of Oman to find a way to remove carbon dioxide gas from the atmosphere. 科学家们前往阿曼山寻找去除大气中的二氧化碳气体的方法。 The geologists hope to find an effective and low-cost
2017年VOA慢速英语(四)月
This is the VOA Special English Agriculture Report. Rice hulls, or husks, are the protective coverings on grains of rice. Rice with just its hull removed is brown rice. Rice without its hull or bran is white rice. Once rice is harvested, the hulls ar
VOA慢速英语2009年（十二）月
50 二氧化碳以鲜为人知的方式影响气候变化 DATE=7-27-01 TITLE=ENVIRONMENT REPORT - Carbon Dioxide BYLINE=Mario Ritter （Start at 59
自然探索
If you've gone shopping for a car lately, you might have noticed that fuel economythe number of miles per gallonis creeping up. One reason is a more efficient type of fuel injection, called gas direct injection. Its a feature of half the new cars sol
2016年Scientific American(八)月
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)
Researchers around the world are trying to find alternative fuels to replace fossil fuels, which are finite and might not be available in sufficient quantities in coming decades to meet the growing world demand for energy. In addition, burning fossi
VOA标准英语2009年(九月)