He could feel the heat of the sun on his back.

他能感觉到太阳照射在背上的热度。

《牛津词典》

The earth would be a frozen ball if it were not for the radiant heat of the sun.

要是没有太阳的辐射热，地球将会是一个冰冻的球体。

《柯林斯英汉双解大词典》

Left out in the heat of the sun, tapes easily warp or get stuck in their cases.

放在太阳底下暴晒后，磁带容易翘曲变形或卡带。

《柯林斯英汉双解大词典》

Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color.

VOA: special.2009.04.20

Similarly, solar thermal energy--which harnesses the heat of the sun to generate steam-powered turbines--consumes more than 2, 600 liters of water per megawatt hour, 200 liters more than coal-powered generation needs to produce the same energy.

FORBES: The Water-Industrial Complex

The summer months see Times Square overrun by visitors all scrambling for their "I Heart NYC" t-shirt and matching sun visor, while the Empire State Building's elevator queue can, through the heat-haze, seem to extend as far, horizontally, as the iconic building stretches for the skies.

BBC: Summer in the city: New York

BrightSource generates electricity using an approach called concentrated solar power, in which computer-controlled mirrors, known as heliostats, focus the sun's heat to boil water and turn a steam turbine.

ECONOMIST: Energy storage