?脱离轨道
... distinct 不同的 de-orbit 脱离轨道 descent 下降 ...
脱离轨道
脱离轨道火箭发动机
脱离轨道制动火箭发动机
The Jules Verne was filled with 3, 490kg of propellant for rendezvous, re-boost and de-orbit manoeuvres.
BBC: Freighter boosts altitude of ISS
The system is tiny but has a grand name - Warp Drive (Water Alcohol Resisto-jet Propulsion De-orbit Re-entry Velocity Experiment).
BBC: Strand-1 'phone-sat' ready for orbit
It has two old satellites in orbit that are likely to become targets for a future de-orbiting exercise.
BBC: 'Urgent need' to remove space debris
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。