卑微的四缸引擎能如此迅速地替代其他更多缸数的引擎的原因是废气涡轮增压和燃油直喷技术的广泛使用。

What has turned the lowly four-banger into such a ready replacement for its bigger brethren is the widespread use of turbo-charging and direct fuel injection.

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增压泵，从飞机油箱向总油管提供燃油的电动泵。

BOOST pump, an electrically operated fuel pump for fuel supply from the airplane fuel tank to the fuel manifold.

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本文还进行了实机模拟试验，结果表明采用相继增压技术后将大幅降低机车柴油机的燃油消耗率，节油效果非常明显。

The paper also conducted a simulating experiment, displaying that the fuel consumption rate decreases largely after turbocharged, the saving in fuel is extraordinary obvious.

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