一旦进入轨道，西弥斯太空船将会在只有地月距离的六分之一的高度处绕地球运转，同时，其他两颗在地月距离一半处绕行。
Once in orbit two of the themis spacecraft will circle earth about one-sixth the distance to the moon while the other two circle half way to the moon.
一旦进入轨道，这些探测器就会展开薄薄的帆，然后在来自地球的强大激光束推动下，一个接一个地出发，就好像迁徙的蝴蝶从太空掠过。
Once in orbit, the probes would unfold thin sails and then, propelled by powerful laser beams from Earth, set off one by one like a flock of migrating butterflies across the universe.
一旦它抵达那里并进入轨道，“朱诺”就将开始对太阳系中最大的行星的结构和组成进行透彻的分析。
But once it gets there and settles into orbit, Juno will begin an intensive study of the structure and composition of the Solar System 'biggest planet.
但是一旦飞船进入太空轨道，他认为他的发明将会更具有现实意义：Mini—Helicon型等离子推进器正是为能更轻巧廉价地在太空飞行而诞生的。
But once a craft hits orbit, he says, his new invention makes more sense: The Mini-Helicon Plasma Thruster is designed to be a lighter, cheaper way to move through space.
一旦进入反重力装置失效的轨道空间，飞船才切换到更强大的亚光速推进器。
Once in orbital space, where repulsorlifts become ineffective, a ship switches to its more powerful sublight drives.
他们将测试抛弃机制，那将脱落服务舱的整流罩，一旦该航天器进入轨道。
They will test the jettison mechanisms that will shed the servicemodule fairings once the spacecraft is in orbit.
一旦卫星进入它绕地球运行的轨道，太阳能板就被打开用来吸收阳光。
Once the satellite goes into its orbit round the earth, the panels are unfolded in order to catch the sunshine.
一旦进入公司，虽然，熟练的攻击者却可以覆盖轨道。
Once in, though, the skilled attacker has no difficulty covering tracks.
一旦进入公司，虽然，熟练的攻击者却可以覆盖轨道。
Once in, though, the skilled attacker has no difficulty covering tracks.
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