The equation of a spacecraft with solar arrays are obtained by using the conservation principleofmomentum .
利用动量矩守恒原理导出带太阳阵航天器的动力方程，指出了系统的非完整约束性质。
2
A mathematical model for the trajectory of the jet axis was proposed on the principleofmomentum conservation.
以动量守恒原理为基础，建立了侧吹射流轴轨迹的数学模型。
3
Researches the interaction of the multiple equal plumes based on the principleofmomentum congruence. Defines three velocity correction coefficients and a flow rate correction coefficient.