Unlike a conventional jet engine that uses a rotating compressor to compress air into the engine for combustion , this one has no moving parts.

传统的喷气式引擎利用旋转压气机将空气压缩进入引擎来燃烧，而这架飞机却完全没有运动的部分。

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The main shaft between the air compressor and the gas turbine in a jet aircraft engine is hollow to permit an internal speed reduction shaft with the minimum requirement of space and weight.

在喷气式飞机发动机内位于空气压缩和燃气涡轮之间的主轴是空心的，允许有一个需要最小空间和重量的内部减速轴。

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There's no reason why the compressor and turbine blades in a jet engine can't be driven by an electric motor to generate thrust under water, he says.

在为引擎装备了转子叶片和调速齿轮后，涡轮轴发动机单元可以在空中和水下为飞行器提供“可接受的工作效率”，他们称。

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Despite signs of a weakening U.S. economy, aerospace component manufacturers are working flat out, machining turbine compressor blades, high-speed bearings and other parts for jet-engine and aircraftmakers.

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