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某厂新购进一台机床，其型号为MB1432。
(1)试述该机床的名称及主运动?
(2)机床安装后，经检验，其工作精度指数为0.465，几何精度指数为0.531，则该机床质量是否合格?

A.465，几何精度指数为0.531，则该机床质量是否合格?

【参考答案】

(1)该机床是最大磨削直径为320mm的半自动外圆磨床。该磨床的主运动是砂轮的高速旋转运动。(2)该机床工作精度指数T......

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