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【多选题】
利用可倾虎钳铣削复合斜面,下面装夹方法描述有误的是( )。
A.
把工件装夹在钳口，使工件的底面与虎钳两导轨面沿轴口方向倾斜α，把工件和钳口倾斜β
B.
把工件装夹在钳口，使工件的底面与虎钳两导轨面沿轴口方向倾斜αn，把工件和钳口倾斜β
C.
工件和夹具（或铣刀）各转动一个角度
D.
把工件装夹在钳口，使工件的底面与虎钳两导轨面沿轴口方向倾斜β，把工件和钳口倾斜α
E.
把工件装夹在内斜垫，使工件的底面（或顶面）与虎钳两导轨面沿钳口方向倾斜一个角度和用转盘转过另一个角度
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