直接微分 meaning in Chinese

direct differentiation

Based on the general mathematical models of multibody system dynamics such as the kinematics models of multibody dynamical systems , the ordinary differential equation models and the differential algebraic equation models of dynamics , general forms of the sensitivity equations of the systems are deduced by using direct differentiation method and adjoint variable method
基于通用的多体机械系统运动学数学模型，常微分方程形式的动力学数学模型、微分/代数方程形式的动力学数学模型分别采用直接微分方法、伴随变量方法推导出了系统的状态灵敏度方程的通用形式。对于微分/代数形式的数学模型