As the air-breathing engine, the performance of solid rocket ramjet is determined not only by structure of engine and the performance of propellant, but also by flight condition.
作为吸气式发动机，其性能不仅取决于发动机本身结构和推进剂性能，与飞行状态也有密切的联系。
LTD(IHI) is conducting development study of Air Turbo-Ramjet(ATR) engine, which is one of the most preferable candidate as an air breathing propulsion system of future space plane.
日本航空宇宙技术研究所和石川岛播磨重工业公司目前正在开展这方面的研究工作。
As a power plant of future space transportation system, air breathing combined engine needs a special hydrogen supply and management system.
作为未来航天运输系统的动力装置，吸气式组合发动机需要一个特殊的氢供应及管理系统。
In theory, the air-breathing engine could propel an airplane to speeds of Mach 7 or faster, enabling around-the-world flights that would take several hours.
从理论上讲，这种喷气引擎可以将飞机速度推进到7马赫甚至更快，使飞机能在数小时内完成环球飞行。
In theory, the air-breathing engine could propel an airplane to speeds of Mach 7 or faster, enabling around-the-world flights that would take several hours.
从理论上讲，这种喷气引擎可以将飞机速度推进到7马赫甚至更快，使飞机能在数小时内完成环球飞行。
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