A.3~6mm B.4~6mm C.5~8mm D.6~10mm
A.OX軸 B.OY軸 C.OZ軸 D.45°斜線
A.順時(shí)針45° B.逆時(shí)針45° C.順時(shí)針75° D.逆時(shí)針75°