单词：centrifugal gas cleaner
单词：centrifugal gas cleaner 相关文章
Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it
365个英语简短小故事
Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th
VOA2003（上）-国际时讯
Companies Try Natural Gas to Fuel Vehicles HOUSTON, TEXAS While many Americans want to reduce both pollution and energy costs, the nation's automobile-based transportation system undermines these goals by being largely dependent on petroleum. But in
VOA标准英语2013年(六月)
The three brothers went out on the river almost every day, weather permitting. They tied some rowboats behind their boat to use as floating trash cans. They picked up all the trash they could see floating in the river. Friends joined them. Then frien
365个英语简短小故事