金星的运行路线离太阳非常近，它介于我们和太阳之间。
Venus courses quite close to the sun, it's between us and the sun.
这种方法要取得成功，不仅要看行星的运行路线，还要看组成该行星的物质是如何结合在一起的。
The success of this approach would depend not only on the path the asteroid is expected to take, but also on how the material that forms it is bound together.
人们可以随时开车去任何地方，如果坐公交车就不可能了，因为公交车有固定的运行路线以及固定的出发和到达时间。
People can drive their cars to go anywhere at anytime, which is impossible if they take buses because buses have their fixed traveling routes and fixed time of departure and arrival.
在系统最佳分配法中，如果不加大运行时间道路使用者就不能改变出行路线，尽管旅行者实际上有可能会减少其运行时间。
Under SO Assignment, no users can change routes without increasing their total travel time on the system, although it is possible that travelers could reduce their own travel times.
航天器：设计在地球低层大气上按受控飞行路线运行的载人或不载人的飞行器。
Spacecraft: Vehicle designed to operate, with or without a crew, in a controlled flight pattern above Earth's lower atmosphere.
航天器：设计在地球低层大气上按受控飞行路线运行的载人或不载人的飞行器。
Spacecraft: Vehicle designed to operate, with or without a crew, in a controlled flight pattern above Earth's lower atmosphere.
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