From descent to touchdown一、音标from /frəm/descent /dɪˈsent/to /tuː/touchdown /ˈtʌtʃdaʊn/整句连读/frəm dɪˈsent tuː ˈtʌtʃdaʊn/二、词义拆解航天/航空专业释义descent/dɪˈsent/ n. 下降、再入减速阶段指火箭助推器分离后从太空回落、穿越大气层全程减速俯冲的完整过程包含再入点火、气动控姿、高空滑行等步骤。touchdown/ˈtʌtʃdaʊn/ n. 触地、着陆瞬间特指箭体着陆腿首次接触回收平台甲板的那一刹那是回收流程的终点标志。短语直译专业译法字面从下降直至触地航天标准翻译全程下降着陆 / 从再入到稳稳落地三、结合你文档里的New Glenn语境原文推文Full Uncut Footage of New Glenn’s Landing! Experience the full, uncut footage of New Glenn’s landing as Blue Origin’s massive reusable booster makes its return to Earth.完整无剪辑新格伦火箭着陆画面一睹蓝色起源这款巨型可回收助推器返回地球的全过程From descent to touchdown是航天视频常用标题短语专门概括巨型一级助推器回收全流程一二级分离 → 助推器折返、大气层再入减速descent阶段低空悬停漂移、展开着陆腿 → 精准落在海上回收船Jacklyn甲板touchdown四、例句适配New GlennFrom descent to touchdown, the massive reusable booster completed autonomous control without human intervention.从再入下降到最终触地这台巨型可回收助推器全程自主完成控制无需人工干预。The video records every detail of the booster from descent to touchdown over the Atlantic.这段视频完整记录了助推器在大西洋上空从下降到着陆的全部细节。五、补充区分易混词descent名词下降全过程descend动词俯冲、下降touchdown触地瞬间时间点landing完整着陆事件包含descenttouchdown落地稳定