No, solar panels.

来源: _学无止境 于 2013-08-14 11:33:07 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (206 bytes)
回答: 呵呵。你是说太阳能热水器吧。LOL 由 知人知面 于 2013-08-14 11:18:18

A lot of them on the buildings and there is a lot of products for small electronic devices. I also heard that my classmate company is producing some paint for buildings  to generate electricity.

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