A.0.1mmB.0.5mmC.0.2mmD.1mm
A.加研磨膏對研B.用油沖洗C.用刷子刷洗D.檢查齒側(cè)間隙
A.0.13~0.21B.0.15~0.20C.0.20~0.25D.0.20~0.23