单词:inclined roof heater
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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
DEVELOPMENT REPORT – How to Make a Solar Water Heater By Gary Garriott Broadcast: Monday, November 29, 2004 I'm Gwen Outen with the VOA Special English Development Report. Solar water heaters save o
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
英语六级考试写作常用句型--关于利弊、优缺点的句型: 1. S+have (or has) a lot of advantages over(与相比有许多优点)Compared with B, A has (or have) many advantages. 译:1)澳大利亚与中国相比,其优点是人口少