DIESEL engines, with their rough-and-ready, spark-plug-free method of fuel ignition, have a reputation for being smoky and smelly.

柴油机因其马虎粗糙的无火花塞点火方法，而素有烟雾弥漫和刺鼻难闻的恶名。

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The engine would use at least 25% less fuel and, he claims, its emissions of carbon dioxide and nitrogen oxide would be cut by three-quarters because of its unique ignition properties.

利奥尔博士还表示，由于其独特的点火特性，新型引擎（发动机）的二氧化碳和一氧化氮气体排放量将会减少3/4。

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This air is guided and diffused by static blades to allow for easier ignition when it mixed with fuel and ignited in a combustion chamber.

静止叶片引导空气进入并加以整流，使其在燃烧室内更易于与燃气混合并点燃。

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The area near an uphill incline is considered a collection point for fuel and ignition sources, and it's possible a piece of debris fell into the tinder-dry brush early Thursday and sparked the fire, Piranio said.

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This is possible because with the lasers, the location of the ignition can be in the center of the air-fuel mixture, rather than just the portion closest to it.

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The fast-ignition technique is more like a petrol engine: first the fuel is compressed and only then is it ignited by a second laser pulse acting as a spark plug that is fired through a hole in the pellet.

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