The second class absorption heat pump can get hot water or vapour using heat potential difference of middle temperature exhaust gas and lower temperature sink.

第二类热泵可利用中间温度的废热与低温热源之间的热势差，制取热量少但温度高于中温废热的热水或蒸汽。

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Knowing how to dress for the summer heat and still remain comfortable and professional has the potential to boost your professional image.

知道如何在炎炎夏日穿着得体，同时又能保持舒适和专业，有潜力提升你的专业形象。

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He highlighted the potential of biotechnology - genetic engineering - to develop new crop varieties that are more resistant to heat, but said the potential remains unproven.

他强调了生物技术的潜力——遗传工程——可以开发更耐热的新的作物品种，但他同时承认这种潜力还没能被证实。

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"If they stood on one leg consistently, they would risk greater loss of body heat and potential tissue damage in the cold, " says Anderson.

BBC: Earth News - Why flamingoes stand on one leg

Thermal efficiency is how much of the potential heat energy of the fuel used is actually returned as work at the wheels.

FORBES: How to Build a Car that Gets 54.5 MPG

He took the box and sat with it on his lap on a helicopter flight as pilots fired flares to deflect potential heat-seeking missiles.

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