primary suspension meaning in Chinese

第一系弹簧悬挂
主悬吊

The bogie is feasible , in which the primary suspension is flexible , and the tilting mechanism of passenger car is composed of four swing bars and an electromechanical actuator
倾摆机构采用四摆杆机构加机电式作动器，为簧间摆模式。
The oriented capability of between the new type bogie with the optimum schemes of longitudinal rigidity arrangement in the primary suspension and traditional bogie is analyzed and compared based on literature [ 2 ]
在文献[ 2 ]的基础上对最佳的一系纵向刚度布置的新型转向架和传统转向架车辆的曲线性能进行了仿真对比。