precession

英 [prɪˈsɛʃən]

美 [priˈsɛʃən]

网络  进动性; 运动; 歳差運動; 进动; 旋进

化学

COCA.28486

英英释义

noun

• the act of preceding in time or order or rank (as in a ceremony)
  Synonym:precedenceprecedency
• the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone

双语例句

• Precession is of utmost importance since it causes relatively rapid changes in coordinates d and б.
  岁差之所以特别重要是因为它引起坐标d和б比较迅速的变化。
• The research status and recent progress of the spin wave emitting are reviewed, which is caused by spin-transfer torque and magnetization precession in the nanoscale magnetic multilayer.
  回顾了纳米磁多层结构中电流感应自旋矩传输和电流驱动磁化矢量进动引起的自旋波发射等新量子效应的研究现状及发展。
• The precession frequency goes up.
  旋进的频率上升了。
• And if I make the torque higher, then the precession frequency will go up.
  如果我使力加大，旋进的频率就会上升。
• Secondly, canonical transformations, Hamilton-Jacobi theory and action-angle variables were investigated, which made a foundation to study the precession of planets.
  其次，我们介绍了经典力学中的正则变换、哈密顿-雅可比理论及作用角变量方法，为后面研究行星进动问题提供了方法。
• Can be drived by wind from all directions without precession effect.
  能接受任意风向的驱动，运行时不会产生进动效应；
• Three orbital elements of the Earth: precession, declination and eccentricity, and Milankovitch theory are introduced briefly.
  本文简介了黄赤交角、偏心率、岁差等地球轨道三要素和米兰柯维奇理论。
• The tilting of the gyro continues until the erection torque balances the torque producing the precession.
  陀螺继续倾斜直至修正力矩与产生进动的力矩平衡。
• According to the precession rule, the integrated drift error model of ESG in ESGM is given.
  按照进动规律，最终得到静电陀螺监控器中陀螺仪漂移误差模型的全量形式。
• Control methods of gyro's precession for a certain kind of seeker were deduced and analyzed theoretically to realize precision control of the seeker for target seeking and tracking.
  为实现精确控制某型号导引头搜索和跟踪目标，从理论上推导和分析了该导引头中陀螺仪的运动控制方法。