the secondary surface texture (waviness)of the big-end parent bore shall not exhibit deviation from the true circular form in a degree greater than 0.0025mm crest to root,except where it is accountable to the split line.Details of the limiting irregularities when measured by "talyround"trace indicator are shown in the following illustration.

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次要表面化纹理(waviness)of 大结束父母bore 不会陈列 偏差从真实的圆形式在程度大于0.0025mm 冠根源, 除了它是有责任 的对分裂线的地方。限制的不规则性的细节当由 " talyround"trace 显示卡测量被显示在这个以下例证。