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[report整理] SENEWS-2011-04-25

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[Homework]SENEWS-2011-04-25

本帖最后由 Emily@@ 于 2011-4-25 12:58 编辑

Homework
This is the voa special english Technology report
soda water are used around the world and they are not very difficult to built.The system we are going to desgride it's base on the design that value some years ago in Afganstan.
since then, it has been built and used in many countries. it can hit 70 leather of water to 60 degree centigrate. it can do this between sunlight and noon on a clear day with @@@ 32 degree centigrate,
There are two parts to the soda water hitted.
one part is made of sheet of metal paiting black. Black surfaces that come hotter in the sun than surfaces painted in the other colour.
this black metal plate is called a colleted. the collected is planting in contept with the water. there are several kinds of metal sheets they can be used for the colleted. collect metal will work very well.
collect sheets are often used as rool on housing, once the water is hitted it's hat hot with the interlation merterial. this allows the water just stay warm for a long time.the second part of the soda water hitter hold the water for the system.this story thing can be a container they hold about 100 leathers.
the second part of soda water holds the
01:50分止
two robel pipe are retact to storiage thing. one pipe lets awter though into the systerm, the other lets water through out. from the water hitter is working correctly. watere is through from the starige thing to the collector and back again.
you can use the hot water at the top of the tun for washing and cleaning. you can change the flow of water so that the temprature is hot warm. as design, this soda water hitter is easy to build and upgrate. it relaxs about 2years @@@before the robel pipes need to be replace. there is also somethingelse you will leave to make soda water hitter work, the sun as you might admassion the hitter will hit water. you can get more information about soda water hitter and other projest from interprice works vikers.
this group works internationally to fight pobroly.

and that is the voa special english programm.

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