head contact flat joint bar的意思|示意

轨头地面接触夹板 ... 平型双头夹板flat joint bar 轨头地面接触夹板;锲型接头夹板head contact flat joint bar 轨腹上圆弧接触夹板;铰型接头夹板head free flat joint bar ...

锲型接头夹板 ... 平型双头夹板flat joint bar 轨头地面接触夹板;锲型接头夹板head contact flat joint bar 轨腹上圆弧接触夹板;铰型接头夹板head free flat joint bar ...

轨头底面接触夹板 ... flat joint bar 平型双头夹板 head contact flat joint bar 轨头底面接触夹板，又称“楔型接头夹板” head free flat joint bar 轨腹上圆弧接触夹板，又称“铰型接头夹板” ...