A.5mm B.10mm C.20mm D.30mm
A.2‰ B.1‰ C.0.5‰ D.0
A.設(shè)計(jì)值±5mm B.設(shè)計(jì)值±10mm C.設(shè)計(jì)值±20mm D.設(shè)計(jì)值±30mm