单词：heater temperature rise rate
单词：heater temperature rise rate 相关文章
Technology Report - How to Make Your Own Solar Water Heater This is the VOA Special English Technology Report. Solar water heaters are used around the world and are not very difficult to build. The system we are going to describe is based on a design
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This is the VOA Special English Development Report. Solar water heaters are devices that use energy from the sun to heat water. Solar water heating is used around the world. An example of a rooftop solar water heater being built in South Africa The
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Mom is taking Lily's temperature Lily:Mom!??? Mom:I know, sweetie. Just open wide. Don't talk. [takes temperature] Lily:[Mumbling] Mmm... Mom:[Takes thermometer out] Oh, you've got a fever. One-oh-one...time to break out the children's Tylenol. Lily:
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WASHINGTON, May 3 (Xinhua) -- People diagnosed with asthma in the United States grew by 4.3 million between 2001 and 2009, according to a new report released Tuesday by the Centers for Disease Control and Prevention(预防) (CDC). In 2009, nearly one
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WASHINGTON, Sept. 16 (Xinhua) -- U.S. poverty（贫困） rate climbed to 14.3 percent in 2009, the highest level since 1994, as households' incomes were squeezed by the deepest recession（衰退） since the 1930s and high unemployment（失业率 ）
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