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		燃料消耗下充液航天器等效动力学建模与分析 1)
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			EQUIVALENT DYNAMICS MODELING AND ANALYSIS OF LIQUID-FILLED SPACECRAFT WITH FUEL CONSUMPTION 1)
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| 图 9. 刚体摆的集中质量的运动轨迹在$B-{ b}_1 { b}_2 $平面内的投影 | 
| Fig. 9. Trajectory of the lumped mass of the rigid-pendulum on $B-{ b}_1 { b}_2 $ plane | 
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