A helium line unexpectedly vented, eventually leading ground support crews to a ring that had come loose from a seal.
一根氦管路意外泄露，最后地面支持人员发现问题源自一个松动的密封环。
Dragon Operations centers use and distribute data from Predator and Reaper aircraft, and interface with ground control station crews, forward aircraft and Command and control centers worldwide.
Dragon作战中心采用并分发来自掠夺者和收割者飞机的数据，并与地面控制站工作人员进行交换，提供给全球的飞机及指挥和控制中心。
In lieu of an alarm clock, sleeping crews are woken by music played over the PA system by Nasa staff on the ground.
代替闹钟唤醒宇航员的是由地面上的NASA工作人员通过PA系统播放的音乐。
While the Hotshots, Smokejumpers and other support crews fight the battle on the ground, they are given a lot of support from the air.
当快车员、烟跳员和其他支援人员在地面上作战时，他们能得到空气的大力支持。
He explained that his pilots were competing with Allied squadrons, and challenged his men on the ground to face off against Allied maintenance crews.
他解释说飞行员们正在与盟军的其它飞行中队比赛，并让地面支持人员也同盟军的地面维护队员进行比赛，看谁的维护工作做得更好。
Smokejumpers parachute from airplanes. They fight fires that crews cannot reach quickly or easily from the ground.
空降消防员从飞机上跳伞，他们到其他消防员不能迅速到达或者在地面不方便行动的地方进行灭火。
Smokejumpers parachute from airplanes. They fight fires that crews cannot reach quickly or easily from the ground.
空降消防员从飞机上跳伞，他们到其他消防员不能迅速到达或者在地面不方便行动的地方进行灭火。
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