Extracting heat from very hot, dry rocks presents a more difficult problem: the rocks must be fractured to permit the circulation of water, and the water must be provided artificially.

从极热的而干燥的岩石中提取热量，暴露出了一个更加困难的问题：必须击碎岩石以保证水的循环，而水必须是人工提供的。

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Rainforests have their own perfect system for ensuring their own survival; the tall trees make a canopy of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, intense dry heat from the sun and strong winds.

雨林有自己完善的系统来确保自身的生存；高大的树木有枝叶形成的树冠层来保护自身，树冠也保护着矮小的植物以及动物不受暴雨、酷暑及强风的侵扰。

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It's only half a glass of wine per serving and quite refreshing, especially in the dry heat of winter-time homes.

虽然汽酒中只含半杯酒的酒精，但是它非常清爽提神，特别是在冬天又干又热的家里。

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So keep the garden watered. Moist soil absorbs more heat than loose,dry soil covered with mulch or vegetation.

VOA: special.2010.01.12

People bring heat with them. They also add wetness to the dry air.

VOA: special.2009.12.15

Eczema can be worsened by stress, heat, dry air and sweating.

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Meteorologists predict the dry heat will last into next week -- not good news for firefighters.

CNN: Heartbreaking losses as Western wildfires rage

The combination of the soil, dry heat and altitude give the wines a lifted texture, purity of fruit and obvious finesse.

WSJ: Will Lyons on Wine: The Wild Beauty of France's Roussillon and Its Wines