In general, the water heater in the middle temperature state is the most energy-efficient.

一般来说，热水器工作在中温状态是最节能的。

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The induction electric heater is in a double-rectangular shape with an opening in the middle, and is formed by winding an induction wire harness.

其中感应电加热器呈中间具有开孔的双矩形，其是由感应线束缠绕而形成。

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The innovation using the natural gas to air as fuel to provide the heater in place of middle pressure dry gas in one crude oil stabilization plant is introduced in this paper.

文章介绍了某原油稳定装置利用放空天然气代替处理后的中压干气作为加热炉燃气的改造情况。

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He could run a hose down from the house, and, yes, he had put a hot-water line through the basement out to the back, and, in the dead of winter, with his 50 amp heater running and a drain in the middle of the concrete floor, he could wash his MG convertible, dreaming of tomorrow and his escape.

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In the middle of the room, the duvets covered what appeared to be a small table which turned out to be a heater.

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