单词：coal-bearing density
单词：coal-bearing density 相关文章
Acting Beijing Mayor Cai Qi admits the current bout of air pollution throughout the capital is a major concern. He says like most people in the city, he is consistently checking the air quality index, and says public concern about the problem is both
2017CRI中国国际广播电台
The Chinese government has announced plans to roll out a three-year plan to ensure greater achievements in air pollution control. The decision was made at the National Environment Protection Conference that concluded over the weekend. The two-day env
2018CRI中国国际广播电台
中文 英文 缩写 * （符） star (symbol) [美国]电气和电子工程师学会 Institute for Electrical and Electronic Engineers IEEE “请发码”信号
电信英语
The Ministry of Environmental Protection said that industrial emissions, vehicle exhaust fumes and heating reliant on coal were three main factors that caused wide-spread air pollution across China in the past week. 环保部日前表示，工业排放
实用英语
Beijing government has vowed that by 2020 the city's annual average density of fine particulate matter (PM2.5) will have decreased by 30% from that of 2015. 北京市政府日前承诺，到2020年，该市细颗粒物(PM2.5)的年均浓度将比2015年
英语新闻
The proportion of hazardous metal toxins in PM2.5 in Beijing has decreased for the past three years, which experts lauded as the initial achievement of the city's anti-smog measures. 过去三年，北京市PM2.5中对人体有害的金属毒素的比重
英语新闻