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Terms for subject Astronautics containing 阶 | all forms
ChineseEnglish
主动飞行阶段burning phase
巡航飞行阶段cruising phase
沿日心轨道飞行阶段heliocentric phase of the mission
滑行阶段coast period
着陆飞行阶段fly up the range
起飞发射，加速阶段launching phase

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