题目某轴公称尺寸为Ф50mm,其下偏差为-0.025mm,公差为0.016mm,则上偏差为 mm.某轴公称尺寸为Ф50mm,其下偏差为-0.025mm,公差为0.016mm,则上偏差为 mm.题目解答答案-0.009;-0.009mm