单词：filter concentrate processing
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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
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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
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CANBERRA, Sept. 30 (Xinhua) -- Australian federal government（联邦政府） on Thursday announced it will immediately lift a freeze on the processing of claims from Afghanistan（阿富汗） asylum seekers. The six-month freeze on processing, whi
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