The primary factors that influence the heat level and its change direction of the blast furnace have been analyzed.

论文分析了影响高炉炉温水平及炉温走向的主要因素。

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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

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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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Whenever the ambient heat reaches your set comfort level (which can be controlled from the web or a smartphone app), the fan will shut off and the insulating cover -- described to us as ironing board material -- will prevent additional heat from escaping.

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