问题:
A.0.5~1圈B.0.5~1.5圈C.0.5~2圈D.1~3圈
问题:
A.0.5~1圈B.0.5~1.5圈C.0.5~2圈D.1~3圈
问题:
A.14.70kNB.24.70kNC.26.47KND.36.47Kn
问题:
A.14.70kNB.24.70kNC.26.47KND.36.47Kn
问题:
A.950~1050mmB.950~1100mmC.000~1050mmD.1000~110mm
问题:
A.160mrnB.180mmC.200mmD.220mm
问题:
A.60mmB.80mmC.100mmD.120mm
问题:
A.0.5mmB.1.5mmC.2.5mmD.3.5mm
问题:
A.φ7mmB.φ8mmC.φ9mmD.φlomm