Photovoltaic solar panels have made significant improvements, but they are still five to 10 years away from achieving economic parity with fossil fuels-at least at current rates of development.

光伏太阳能电池板的改善最为显著，但以目前的研发速度，至少还需要5至10年的时间才能实现太阳能发电与目前的化石燃料势均力敌。

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But excessive economic development can often cause for the historical buildings with great damage.

但是过度的经济开发往往会造成对建筑遗产很大的破坏。

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With the vigorous development of agricultural tourism, agricultural tourism not only increased their incomes, but also to promote rural economic prosperity.

随着农业旅游的蓬勃发展，农村旅游业不仅提高了农民收入，也促进了农村经济的繁荣。

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It is about participating in charitable endeavors that not only offer assistance to communities in need but that also create ecosystems of economic development within them, with the goal of stimulating long-term socioeconomic vitality.

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What's wrong with this picture--where a business gets clobbered with a high tax rate but then gets a reprieve in an "economic development" program?

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But also with the development of specialized hardware to make installation faster and therefore more economic this component should drop, for sure putting 8KW on a roof unless it is tile or something cumbersome.

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