Low level heat energy is recovered from municipal wastewater using wastewater source heat pump.

利用污水水源热泵，可回收城市污水的低位能源。

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Development and application of a diluter for low-level heat recovery in sulphuric acid plants are described.

介绍硫酸装置低温热回收系统中稀释器的开发与应用。

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For units without proper moderate or low level heat source, it is inadequate to adopt reboiler for heating and stripping.

装置内无适宜的中低温位热源者，则不宜采用重沸器加热汽提。

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If the temperature drops below a certain level it sends a signal, 'turn on the heat', and that signal stays on until it gets a negative signal to turn off.

如果温度降到一定程度以下时,探测器会发送一个信号,打开加热器,直到加热器再收到关闭的信号,它就会一直开着

耶鲁公开课 - 生物医学工程探索课程节选

But he was unable to enact a cap-and-trade program to reduce the level of heat-trapping emissions.

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But once that flame is lit, the level of heat generated by the campaign is entirely up to the potency of the creative idea.

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New York City Mayor Governor Michael Bloomberg, apparently upset that such a rampage with a legal weapon had not yet set off serious gun control efforts at the federal level, tried to heat up the debate on Monday with the shocking news that he was able to buy a bunch of guns illegally at a gun show in Arizona.

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