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【简答题】
____一工件以外圆在 V 形块上定位加工圆柱上一个平面,平面的高度误差为 0.05,V 形块的角度是 120°。工件直径上偏差 0.03,下偏差-0.01。工件在垂直于 V 形块底面方向的定位误 差能满足加工精度要求。
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【单选题】Read the following passage and choose the correct answer.Jenny and her sister, Carol did a personality test and neither is very happy with the results."Hey, I got 62 points. The results say that I am ...
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