Invented in 1951, the rotary engine is a revolutionary concept in internal combustion.

1951年发明的旋转引擎是内燃领域的一个革命性观念。

《柯林斯英汉双解大词典》

You might say, "Well, gee, why don't we just power our cars with hydrogen placed on an internal combustion chamber."

你可能会说：“好吧，哎呀，为什么我们不把氢气放在汽车内部的燃烧室，来驱动我们的汽车呢。”

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And it must save the world from the internal combustion engine.

但它必须同时也要把世界从内燃机手下解救出来。

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It was not until Henry Ford's gas-powered Model T that the internal combustion engine and the car became inseparable.

VOA: special.2010.11.17

In Europe, anti-car activism is quite advanced, and many inner cities ban internal-combustion auto traffic entirely.

FORBES: In Eco-Effort, Europe Aims To Tax Drivers

According to Bosch's calculations, a conventional internal-combustion-engined car can travel 1.5-2.5km on a kilowatt-hour (kWh) of energy.

ECONOMIST: The electrification of motoring

In SNG's case, the gas can also be compressed and used to fuel cars with internal-combustion engines.

ECONOMIST: Tech.view: Hydrogen tries again | The