单词:decomposed coal
单词:decomposed coal 相关文章
According to the latest data from the General Administration of Customs (GAC), China's net import(净出口) of coal hit 103.43 million tons in 2009. Last year, China exported 22.40 million tons of coal, down 50.7 percent year on year, while its coal
From NPR News in Washington, I'm Lakshmi Singh. BP is coming under mounting pressure to step up its response to the country's worst ever oil spills in the Gulf of Mexico. It's coming down from top Obama administration officials who've been dispatched
BEIJING, Feb. 25 (Xinhua) -- China's safety watchdog said Monday it will no longer approve new coal mines that do not meet production capacity requirements in 2013 in order to ensure work safety. High-gas coal mines with an annual production of less
This is Scientific American's 60-Second Science. I'm Cynthia Graber. Thisll just take a minute. Bisphenol A. Also called BPA, it's used to make shatter-proof plastic known as polycarbonate, found in everything from water bottles to medical devices to
Pulp from Plants Makes Packaging More Earth-Friendly 植物纸浆让包装更环保 The average American throws away about 84 kilos of plastic every year. Much of that ends up in the ocean, according to the marine research group Algalita. Almost half
中国富煤缺油少气的能源资源特点,造成能源消费主要依赖于煤炭,石油则主要依靠进口,而且带来一系列环境问题。煤清洁转化技术则可以帮助缓解这一难题。近日专家表示,我国将在2020年