- optical nutation
- 光学: optics; photology; photics
- 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
- 傅学章: fu xuezhang; fu,xuezhang
- 色度学章度: saturation
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