A novel rapid method to design optimal-fuel interplanetary trajectory for low-thrust propulsion is presented based on normal trajectory approach.

针对星际探测任务中燃料最省小推力转移轨道问题，提出一种基于标称轨道的快速设计方法。

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She said: "if you understand these subtle differences, there may be ways of 'tweaking' them earlier in life, and bringing them back into a normal trajectory of development."

她说：“如不美观你懂得这些细微的分歧，也许你就会有体例及早地调整它们，并把它们带回到正常的成长轨道上来。”

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The trajectory of vehicle barrier crash should be able to stay in the smooth transition, does not affect the normal running of the vehicle to leave the springback Angle and the smaller the.

车辆碰撞护栏的运动轨迹应能圆滑过渡，以较小的驶离角和较小的回弹量停留在不影响车辆正常行驶的地方。

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Keynesian economists argue that the correct policy response is to boost government spending (G) through fiscal stimulus, allowing consumers and businesses time to adjust and recover, and to gradually remove that stimulus as the economy returns to its normal growth trajectory.

FORBES: Impossible Things And Our Economic Recovery

Hong Kong, China (CNN) -- The way David Hughes tells it, his life was humming along nicely on a normal, if a little dull, career trajectory.

CNN: Hong Konger turns rugby passion into Rwanda vision