单词：purifiers
[化] 净化器; 净化设备; 清洗器; 提纯器
n. an apparatus for removing impurities
单词：purifiers 相关文章
Beijing will launch a pilot program to equip schools and kindergartens with air filtration devices. Smog has been a significant issue in the Chinese capital this winter. I was coughing just now, I always wear mask, from school to home. The air is cho
2017CRI中国国际广播电台
With major pollution days becoming more frequent, students are staying home, often without supervision. Their parents say it would be better if their children were in the classroom, and that's why schools need to install air purifiers. Our school bou
2015CRI中国国际广播电台
China's General Administration of Quality Supervision, Inspection and Quarantine has pledged to keep 92 percent of the sample product quality above the state standards while reducing accidents of elevators and other mechanical devices. Improving the
英语新闻
China's General Administration of Quality Supervision, Inspection and Quarantine has pledged to keep 92 percent of the sample product quality above the state standards while reducing accidents of elevators and other mechanical devices. Improving the
2016CRI中国国际广播电台
Topic1 China recognizes mega citiesChina is introducing the definition of mega city as the country further urbanizes. The latest standards of cities issued by the State Council, China's cabinet, have defined cities with a metropolitan area of more th
英语角-圆桌会议