Are the men coming to install the heating apparatus this afternoon?

那些人今天下午要来装暖气设备 吗 ?

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They have bought a heating apparatus recently.

他们最近买了一套加热器.

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A heating apparatus [ system ] .

暖气 装置.

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That magazine covers all kinds of heating apparatus.

那本杂志谈及各种暖气装置.

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We decided against installing new heating apparatus, for the reason that it would be too costly.

我们决定不安装新的暖气设备, 因为代价太高.

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