A.連續(xù)測定3尺 B.單桿測定 C.連續(xù)測定10尺 D.連續(xù)測定5尺
A.大于等于0.2mm B.大于等于0.1mm C.小于等于0.2mm D.小于等于0.1mm
A.不大于15mm B.不小于15mm C.不大于10mm D.不小于10mm