正加速度的火箭：多节航天器上的辅助火箭的，这种火箭点燃后沿航天器运行方向推进，并分为几部分。
Of, relating to, or being an auxiliary rocket on a multistage spacecraft that is fired in the direction of the spacecraft's motion to separate the sections.
正加速度的火箭：多节航天器上的辅助火箭的，这种火箭点燃后沿航天器运行方向推进，并分为几部分。
Of, relating to, or being an auxiliary rocket on a multistage spacecraft that is fired in the direction of the spacecraft's motion to separate the sections.
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