A.0.02mm B.0.05mm C.0.1mm D.0.9mm
A.測(cè)量精度 B.結(jié)構(gòu) C.測(cè)量工件的功用 D.主尺長(zhǎng)度
A.1/10mm,1/20mm,1/30mm B.1/10mm,1/20mm,1/40mm C.1/10mm,1/20mm,1/50mm D.1/10mm,1/20mm,1/100mm