A.粗 B.細(xì) C.隨便 D.厚
A.鍵連接 B.銷(xiāo)連接 C.過(guò)盈配合 D.軸肩定位
A.900N²s/cm B.1000N²s/cm C.1100N²s/cm D.1200N²s/cm