转向节通过球头节与安装在车架上的上下控制臂相连。
The steering knuckle then supported through Ball joints, by upper and lower control arms which are attached to the car frame.
文章介绍了一种车削喷油器球头自动上下料机构的原理及结构。
In this paper, the principle and construction of a automatic lathe which is used to turn ball of oil sprayer are introduced.
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