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upper stage

  • 上层:火箭、导弹或其他航天器的上部分,通常负责将有效载荷送入预定轨道或目标。

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双语例句权威例句

  • Unlike other rockets, Falcon 9's upper and lower stages do not use explosive bolts to separate mid-flight.

    不同于其他火箭,飞行中,猎鹰9上下级使用爆炸螺栓分离

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  • In order to adjust Upper Jingjiang stretch fluvial regime and predict its change tendency after completion of TGP, a physical model study on Upper Jingjiang stretch was carried out at various stages.

    为了调整荆江河势预测三峡工程兴建荆江河势变化趋势,分阶段进行了上荆江实体模型河势调整试验和河床冲刷试验研究工作。

    youdao

  • The upper leaves of flue_cured tobacco CV. NC89, K326, RG11 were sliced, and their changes of thickness and dissecting structure were observed from the stages of yellowing to color fixing.

    烤烟品种NC89K326RG11上部为材料,期至烟叶厚度解剖结构变化进行了切片观察

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