Differential Variational Principles and Conservation Law of Holonomic System with Unilateral Constraints Relative to Non-inertial Frame是什么意思_Differential Variational Principles and Conservation Law of Holonomic System with Unilateral Constraints Relative to Non-inertial Frame在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句