当轮廓编程原点与工件坐标系原点不一致时,应如何处理( )
A. 坐标偏移
B. 坐标旋转
C. 转换为极坐标
D. 镜像加工
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当加工轮廓关于工件坐标系呈轴对称分布,且相对于工件坐标系的坐标轴旋转一定的角度时,在编程时应如何处理( )
A. 先旋转,再镜像
B. 先镜像,再旋转
C. 都可以,无区别
机架毛坯为方块形状,除了用平口钳和等高垫铁组合装夹外,也可以采用三爪卡盘调整装夹。
A. 对
B. 错
Translate these into Chinese.If you drive the car without releasing the parking brake,the ABS cannot work properly.
Translate these into Chinese.Driving the car with the parking brake applied can damage the rear brakes and axles.