The hydrogen propulsion system will be the key to Phantom Eye's success.

氢推进系统将是幻影眼成功的关键。

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Orbit maneuver hydrogen-oxygen thruster based on gas dynamic resonance igniter is a novel chemical propulsion technology especially prospective in space station application.

结合气动谐振点火器进行头部设计的氢氧变轨火箭发动机是一项新颖化学火箭推进技术，尤其适于空间站应用。

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Mr. Marchionne held up hydrogen fuel-cell propulsion as an example of faddish technology that proved impractical.

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