In addition its combustion time is shorter than the machine-made coal.

此外其燃烧时间比机制炭短。

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The paper introduces a new method of measuring combustion time with CAT technique for solid rocket engine.

介绍一种应用CAT技术确定固体火箭发动机燃烧时间的新方法。

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A new modified model for volatile combustion time related to temperature, particle size, and reaction mechanisms was proposed.

并在此模型基础上，提出了与温度、粒径、反应机理相关的新的挥发分燃烧时间预测模型。

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Electric cars are not going to replace internal combustion cars any time soon.

FORBES: Tesla's Gotcha Blog Catches New York Times Reporter Driving In Circles

In the 1980s, they like to point out, Mr Gore focused on global warming: he even predicted, amid much derision at the time, the demise of the internal combustion engine.

ECONOMIST: 2001: A Gore Odyssey

While some could argue that pure electric cars are still not ready for prime time, the Volt exists as the bridge between internal combustion and battery-powered propulsion.

FORBES: Living With A Chevrolet Volt