單項(xiàng)選擇題
A.10x10x55mm B.7x10x55mm C.5x10x55mm D.以上均不是
A.2mm深的U型缺口 B.2mm深的V型缺口 C.無缺口
A.2mm、0.07mm B.2mm、0.25mm C.2mm、1mm
A.規(guī)定直徑 B.1/2直徑 C.1/3直徑
A.0.24~0.60D B.0.24~0.50D C.0.24~0.70D
A.8倍 B.10倍 C.5倍
A.算術(shù)平均值 B.最大值 C.最小值
A.10mm B.5mm C.15mm
A.直徑 B.深度 C.面積
A.2-8s B.3-8s C.2-10s
A.1/2 B.1/4 C.1/3