| 释义 |
pre·ces·sion AHD[prē-sĕshʹən] D.J.[priːˈseʃən]K.K.[priˈsɛʃən]n.（名词）- The act or state of preceding; precedence.先行：向前运动的行为或状态；先行
- Physics The motion of the axis of a spinning body, such as the wobble of a spinning top, when there is an external force acting on the axis.【物理学】 进动：当受到外力作用时旋转体轴的运动，如旋转陀螺般的摇摆
- Astronomy 【天文学】
- Precession of the equinoxes.分点岁差
- A slow gyration of Earth's axis around the pole of the ecliptic, caused mainly by the gravitational pull of the sun, moon, and other planets on Earth's equatorial bulge.岁差：地球中轴绕黄道极的缓慢旋转，主要由于太阳、月亮和其它星体对地球赤道降起带的重力作用而造成
- Late Latin praecessiō praecessiōn- 后期拉丁语 praecessiō praecessiōn-
- from Latin praecessus [past participle of] praecēdere [to go before] * see precede 源自 拉丁语 praecessus praecēdere的过去分词 [回到从前] * 参见 precede
precesʹsional adj.（形容词） |