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Lagrangian point

拉格朗日点

拉格朗日点(Lagrangian points )指受两大物体引力作用下,能使小物体稳定的点.于1772年由法国数学家拉格朗日推算得出.

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abstract: The Lagrangian points (; also Lagrange points, L-points, or libration points) are the five positions in an orbital configuration where a small object affected only by gravity can theoretically be part of a constant-shape pattern with two larger objects (such as a satellite with respect to the Earth and Moon). The Lagrange points mark positions where the combined gravitational pull of the two large masses provides precisely the centripetal force required to orbit with them.

以上来源于: WordNet

1.
N one of five points in the plane of revolution of two bodies in orbit around their common centre of gravity, at which a third body of negligible mass can remain in equilibrium with respect to the other two bodies 拉格朗日点; 两个天体环绕运行，在空间中有五个位置可以放入第三个物体，并使其保持在两个天体的相应位置上，这样的点被称为“拉格朗日点” [astronomy]

The probe will stay near an area called a Lagrangian point - there are five similar points.

该探测器将停留在一个叫拉格朗日点的地区附近，太阳系有五个类似这样的点。

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