- forced nutation
- 受: receive; accept
- 迫: compel; force; press
- 章动: nutation; nodding
- 章动: [天文学] nutation; nodding 黄经章动 nutation in longitude; 倾角章动 nutation in obliquity; 章动传动 nutation drive; 章动轮 nutation wheel; 章动器 nutator; 章动轴 nutation shaft; 章动子 nutator
- 受迫波: forced wave
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