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1.The spacecraft's preselected trajectory was carefully planned to avoid collision with the asteroid.
这颗航天器的预选轨迹经过精心规划，以避免与小行星相撞。
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2.The team had to make a quick decision on their preselected trajectory, which would affect the outcome of the mission.
团队必须迅速决定他们的预选轨迹，这将影响任务的结果。
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3. The scientist used advanced software to optimize the preselected trajectory for maximum efficiency.
科学家使用高级软件优化了预选轨迹，以实现最大效率。