And whereas traditional solar panels have to be tilted and carefully positioned so as not to shade nearby panels, tubular ones can be laid flat over the entire roof.
传统的太阳电池板必须倾斜放置并得小心摆放，以免遮蔽邻近的电池板，管状的面板能平躺得铺满整个屋顶。
And whereas traditional solar panels have to be tilted and carefully positioned so as not to shade nearby panels, tubular ones can be laid flat over the entire roof.
传统的太阳电池板必须倾斜放置并得小心摆放，以免遮蔽邻近的电池板，管状的面板能平躺得铺满整个屋顶。
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