平板太阳能热水器和真空管太阳能热水器哪种更先进为什么?
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![平板太阳能热水器和真空管太阳能热水器哪种更先进为什么?](/uploads/image/z/2208004-52-4.jpg?t=%E5%B9%B3%E6%9D%BF%E5%A4%AA%E9%98%B3%E8%83%BD%E7%83%AD%E6%B0%B4%E5%99%A8%E5%92%8C%E7%9C%9F%E7%A9%BA%E7%AE%A1%E5%A4%AA%E9%98%B3%E8%83%BD%E7%83%AD%E6%B0%B4%E5%99%A8%E5%93%AA%E7%A7%8D%E6%9B%B4%E5%85%88%E8%BF%9B%E4%B8%BA%E4%BB%80%E4%B9%88%3F)
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