Libration point | n. any one of five points in the plane of a system of two large astronomical bodies orbiting each other, as the Earth-moon system, where the gravitational pull of the two bodies on an object are approximately equal, and in opposite directions. A solid object moving in the same velocity and direction as such a |
Libration point | n. any one of five points in the plane of a system of two large astronomical bodies orbiting each other, as the Earth-moon system, where the gravitational pull of the two bodies on an object are approximately equal, and in opposite directions. A solid object moving in the same velocity and direction as such a |
固定点 | [固 定 点 / 固 定 點] fixed point; calibration point [Add to Longdo] |
银点 | [银 点 / 銀 點] the silver point; the melting point of silver 962°C used as a calibration point in some temperature scales [Add to Longdo] |