机械增压的4.2升v 8引擎也有点让人失望。

The supercharged 4.2 liter V8 is a bit disappointing too.

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增压的类型最常用的有机械增压、废气涡轮增压、复合增压和气波增压四种。

The most common types of supercharging include mechanical supercharging, exhaust turbo supercharging (turbocharging), combined supercharging, and pressure wave supercharging.

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但宝马公司的工程师认为他们可以重新设计直接注入燃料的引擎和用涡轮给引擎增压的办法来达到这相新的标准。

But BMW's engineers think that they can regain this lost performance by redesigning the engine to have direct fuel injection and by turbocharging it.

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