First he saw his mother cooking and she was chopping the vegetables with her hands, after that she started to boil the water with her own bodyheat, just puting her hand next to the cup.
simple example
体热的产生和散发
The generation and diffusion of bodyheat
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乘客们的体热将被收集进入机舱系统用来做热量交换。
Passengers' bodyheat would be collected and fed into onboard systems using heat exchangers.
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正好相反, 棕色脂肪组织通过消耗能量而产生体热.
By contrast, brown adipose tissue consumes energy to generate bodyheat.
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我们的身体通常是通过将体热传递到温度相对较低的环境来给自己降温。
Your body normally cools itself down by transferring bodyheat to a cooler environment.