nutation
柯林斯词典
1. N a periodic variation in the precession of the earth's axis causing the earth's poles to oscillate about their mean position (造成地球磁极在其平均位置的周围摆动的)地球轴线运动的周期性变化[astronomy]
返回 nutation
1. N a periodic variation in the precession of the earth's axis causing the earth's poles to oscillate about their mean position (造成地球磁极在其平均位置的周围摆动的)地球轴线运动的周期性变化[astronomy]