There are signs that a solar energy panel appears unable to pivot easily and track the sun 有迹象表明一块太阳能电池面板不再能轻易地跟随太阳旋转。
2.
There are signs that a solar energy panel appears unable to pivot easily and track the sun 有迹象表明一个太阳能电池板的转轴出现问题，不能跟踪太阳。
3.
Should we provide incentives or make regulations to mandate the provision of rooftop solar energy panels or other building design features that could contribute to promoting the use of re 我们应否提供诱因或制订规例，让大厦把有利于应用可再生能源的设施(例如天台太阳能板)纳入其设计中？
