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sustainer英英字典_sustainer剑桥英语解释_sustainer柯林斯英文解释_94生活常识网有道词典
94生活常识网有道词典

sustainer

S 开头单词

柯林斯词典

    susˈtainer /səˈsteɪnə/

  • 1. N a rocket engine that maintains the velocity of a space vehicle after the booster has been jettisoned 主火箭发动机

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