35. 圓錐軸向長10 (mm),兩端直徑差1 (mm)之錐形物件,其錐度符號應標示為何?

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統計: A(211), B(26), C(15), D(4), E(0) #812495
統計: A(211), B(26), C(15), D(4), E(0) #812495