The sun was high temperature, high pressure, bears tremendous amounts of energy by light to the cosmic radiation; solar energy is an important human new non-polluting energy.

太阳高温、高压，蕴藏着巨大的能量，不断地通过光线向宇宙放射，太阳能是人类重要的无污染新型能源。

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The heat pump has the advantages of non polluting environment and it can make use of thermal energy of low temperature.

热泵具有不污染环境，可利用低温热能等优点。

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Lithium-ion battery is a new type of energy, which in its non-polluting, can reduce carbon emissions and other advantages, starting as a substitute for traditional energy sources.

锂离子电池是一种新型能源，它以其无污染，可以降低炭排放量等优势，开始作为一些传统能源的替代品。

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"Designers have an obligation to explore solutions which are by nature less energy-consuming and non-polluting, " says Clive van Heerden, senior director of design-led innovation at Philips Design.

CNN: Glowing bacteria could power 'bio-light'