A.模型向前傾斜 B.模型向后傾斜 C.模型向?qū)?cè)傾斜 D.模型不用傾斜
A.0.5mm直角肩臺 B.0.5mm120°肩臺 C.1mm凹形肩臺 D.刃狀肩臺
A.0.1mm B.0.2mm C.0.3mm D.0.4mm