冲压喷气发动机是这三种最简单的一种。

The ram jet is the simplest of the three.

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冲压喷气发动机是这三种最简单的一种。

A simple, essentially tubular jet engine, such as a ramjet.

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超高速冲压喷气发动机引擎在飞机超过音速的情况下不能启动。

Scramjets engines can not start until the plane flies faster than the speed of sound.

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目前，冲压式喷气发动机的军事用途被看好。

At present, the ramjet engine jet for military purposes to be optimistic.

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目前，冲压式喷气发动机的军事用途被看好。

At present, the ramjet engine jet for military purposes to be optimistic.

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