短语词组短语the top of flange 翼缘端部top flange fillet 上翼斜角end door top flange 端门上缘Cover Top Flange 盖顶部法兰top flange plate 上校板top flange type 顶部法兰型welding of the top flange 炉顶法兰焊接landing head flange top 与导管焊接的坐在圆井底的套管头 返回 top flange