Ball and socket joints let your arm bones rotate at the shoulders and also allow the wheels of your car to be turned through the steering column.
球状关节是的人类上肢骨骼可以在肩部自由旋转，这也是汽车车轮在转向柱的操控下转向的关键所在。
The steering knuckle then supported through Ball joints, by upper and lower control arms which are attached to the car frame.
转向节通过球头节与安装在车架上的上下控制臂相连。
Analyzing the structure performance of the recirculating ball and hydraulic pressure power steering by FEA (Finite Element Analysis).
采用有限单元法对某循环球式液压动力转向器进行了结构强度的研究。
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