单词：air line filter
单词：air line filter 相关文章
But the HEPA filter for Olivers Vibe got dirty very quickly. And, it was not cleanableit was simply replaceable. When it turned filthy brown, Oliver went back to Target to buy a new filter. Oddly, Target sold the F15 belt for the Vibe, but not the fi
365个英语简短小故事
From VOA Learning English, this is the Health Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth. The capital, New Delhi, has some of the world's dirtiest air. The pollution was a call for a
2018年VOA慢速英语(一)月
Air Pollution Linked to Cognitive Decline Several years ago a massive survey of women called the Nurses' Health Study began collecting data on memory, thinking skills and other cognitive measures. Jennifer Weuve of the Rush Institute of Healthy Aging
VOA标准英语2012年(二月)
Russia has defended that his country's anti-aircraft missile deal with Syria is legal and in line with international norms. Russian foreign minister Sergey Lavrov. First, the contract on S-300s is absolutely legal, it's transparent and it's fully in
世界各地新闻集锦
By Gary Thomas London 10 August 2006 watch UK Airline Plot report British authorities say they have foiled a plan to blow up aircraft flying from Britain to the United States. Stringent security restrictions were immediately ordered at British airpo
2006年VOA标准英语（八月）
By Tabinda Naeem Washington, D.C. 21 May 2007 Two years ago, the National Academy of Engineering established the Grainger Challenge Prize for Sustainability. This $1 million award was designed to challenge the world's scientists to develop a practica
2007年VOA标准英语（五月）