NASA calls this a gravity assist, and exploits it to save fuel in missions to outer planets such as Jupiter and Saturn.
美国航空航天局称这是一个重力辅助，并利用它来节省执行去木星和土星等外行星的任务时消耗的燃料。
All these spacecraft have used sling-shot style gravity assist maneuvers to increase their speeds through the outer solar system.
这些航天器全都使用了射弹弓式的引力辅助方法，从而在外太阳系中提高速度。
The MESSENGER spacecraft is zeroing in on Venus for the most significant gravity assist maneuver of its long journey to Mercury.
为此次“信使”号在前往水星的长途旅程中最重要的引力机动，飞船正在对金星进行校正。
It turns out, our best bet lies something called gravity assist. a technique we have been using for years only to launch space craft through our solar system.
实际上我们最有利的赌注在于引力助推。一种多年来我们只用在向太阳系内发射航天器的技术。
Intelligence Assist Device (IAD) is a kind of passive special manipulator, which can cooperate with operators in the same workspace. Zero gravity operation is one of the key technique of it.
智能辅助设备(IAD)是一种被动式、可与操作者在一个作业空间实现人机合作作业的特种机器人，零重力操作是它的关键技术之一。
Taking the design of Venus gravity-assist trajectories as an example, the relation between orbital eccentricity and orbital inclination was analyzed.
以金星借力轨道设计为例，分析了轨道偏心率与轨道倾角增量之间的关系。
Gravity works in some situations, but some suppliers advocate sequencing wit with gas-assist.
有的情况下可以靠重力，但是有些供应商提倡借助气体。
Gravity works in some situations, but some suppliers advocate sequencing wit with gas-assist.
有的情况下可以靠重力，但是有些供应商提倡借助气体。
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