冷焊灰铸铁,常用锤击焊缝方法,目的是为了防止热应力裂纹。.
参考答案：对
We express our thoughts ________ words and body language. [ ]
A. in terms of
B. in spite of
C. by means of
D. in case
转K6、C76B型车装用的25t轴重转向架、转E22型摇枕斜楔摩擦面磨耗板或分离式斜楔插板磨耗大于（）更换为新品
A.1mm
B.2mm
C.4mm
D.3mm
