A.核对 B.提示 C.显示 D.纠错
A.1 B.2 C.3 D.4
A.转向架 B.脱轨 C.全车 D.单一
A.φ2mm B.φ3mm C.φ4mm D.φ5mm
单中梁接口焊缝探伤按GB/T11345-1989的规定进行探伤检查,其检查等级为B级,评定等级为Ⅰ级焊缝。
A.547~608 B.747~830 C.941~1046 D.747~820
A.2 B.3 C.4 D.5
A.70mm B.65mm C.60mm D.55mm
A.103mm B.108mm C.160mm D.150mm