The mathematical model experimental study about velocity field in a car-bottom heat treating furnace is carried out by using numerical simulation technology.

利用数值模拟技术，对台车式热处理炉的速度场进行了数学模型实验研究。

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In bottom heat mode, most of the movement of working fluid is pulsating and one-direction circulating flow, not random reciprocal oscillating in certain straight pipe or U-shaped pipe.

底加热时，热管内的运动多是循环的单向脉冲流动，并不是工质在某一个U型管或直管内的往复随机振荡。

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The goal was simple: to discover how the species adapted to the kind of heat that can literally melt the bottom of shoes.

目标很简单：要了解此物种是如何适应可以融化鞋底的高温的。

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During the second orbit, one of these signals warned that the heat shield might not be locked firmly to the bottom of the spacecraft.

VOA: special.2009.06.17

Then, the exhaust heat from the bottom plate of the thermoelectric device would be used in the traditional way to warm water up.

ECONOMIST: Solar power

Bacteria would still be able to live in hydrothermal vents at the bottom of the oceans, kept going by heat generated radioactively in the earth's crust.

ECONOMIST: To the ends of the earth

Scrape the bottom of the pan often with your spatula, and decrease the heat gradually as more and more moisture cooks out of the jam.

WSJ: Gourmet Spreads