Provide valuable similar content to the user on one hand so, the PV cost that also can raise oneself on the other hand and PR value are shared.
这样一方面给用户提供有价值的相似内容,另一方面也可以提高自己的PV值和PR值分享。
The cost of solar PV technology also dropped dramatically.
因为太阳光伏发电的技术成本也面临着同样的状况。
Where there is no public power grid, the PV systems currently operate cost-effectively, due to their low operating costs.
在没有公用电网的情况下,由于系统的低运营成本,就它们当前的表现来看这一系统的成本是可以接受的。
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