The car was powered by a four cylinder air-cooled engine.

这辆汽车是由一个四缸气冷式发动机驱动的。

《柯林斯英汉双解大词典》

The paper outlines the construction of TY180F air-cooled engine.

本文全面地介绍了TY180F风冷柴油机的结构特点。

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The present invention relates to water cooled engine driving hydraulic pump directly and aims at lowering power consumption.

本发明涉及水冷发动机直接驱动液压泵的场合，实现节能降耗的目的。

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To get to them, the company teamed with Porsche to build a liquid-cooled engine.

FORBES: Love into Money

By the early 20th century Syracuse became famous for production of Smith Corona typewriters, Syracuse China, Nettleton shoes, bicycles, wax candles and the Franklin, an ahead-of-its-time automobile with an air-cooled engine.

FORBES: Willis Carrier's Ghost

One is exhaust gas recirculation, which pumps cooled exhaust back into the engine air intake, lowering the combustion temperature and reducing NOx formation.

FORBES: Clearing the Air