单词：fluid catalytic cracking (fcc)
单词：fluid catalytic cracking (fcc) 相关文章
Diesel fuel in the US and the fumes from diesel engines are about to get a whole lot cleaner. As of today, the Environmental Protection Agency is requiring much of the diesel in the country to have 97% less sulfur in it. It's the start of a project
2006年NPR美国国家公共电台
JUDY WOODRUFF:The House of Representatives today approved a bill to fund the government through Saturday, and sent it to the Senate. It buys three more days to pass a $1.1 trillion spending bill for the rest of the fiscal year. The omnibus measure fl
PBS访谈社会系列
By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo
VOA常速英语2008年（四月）
Volkswagen has devised a new catalytic converter that could fix the majority of the cars in the US affected by the diesel emissions scandal, as details emerge of its attempts to satisfy regulators. 大众汽车(Volkswagen)设计出一种新的催化转
英语新闻
DAVID GREENE, HOST: So if you like streaming shows on Netflix or Hulu, these next few months may be crucial for you. That is because the chairman of the Federal Communications Commission wants to loosen government oversight of internet service provid
2017年NPR美国国家公共电台5月
ARI SHAPIRO, HOST: A phone and Internet outage has been disrupting 911 services across the country since yesterday, and today the FCC says it's launched an investigation. Montana Public Radio's Eric Whitney reports. ERIC WHITNEY, BYLINE: Louisiana-ba
2018年NPR美国国家公共电台12月