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The simple and reliable three-dimensional plane motion principle is used.
用三维平面运动原理，简单可靠。
youdao
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The covariant equation of plane motion body in curved space-time is studied.
研究弯曲时空中平面运动刚体的动力学协变方程。
youdao
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The covariant equation of plane motion body in curved space-time is studied.
研究弯曲时空中平面运动刚体的动力学协变方程。
youdao