Modern society may have come full circle: if oil becomes scarce we may have to return to earlier forms of heating and travel.

现代社会也许恢复原状了：如果石油变得稀少，我们可能又回到从前取暖和旅行的方式了。

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By the method of circle heating chain analysis, the different mechanism of flame stability between bluffbody burner and slitting bluffbody burner were compared.

用回流加热链着火分析法，分析比较了钝体燃烧器和开缝钝体燃烧器不同的稳焰机理。

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The drying conveyor dries the printing ink well by making use of the infrared, it is with the new concept of proportion control, with strong heating wind circle system.

烘干机利用远红外线使油墨的烘干效果优良，采用比例控制新概念，设有强制热风循环系统。

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