SHOULDER: Defect found on rib or outer diameter; a raised edge on rib face caused by grinding wheel; raised surface at either end of outer diameter raceway.

挡肩：外径或挡肩上发现的缺陷；挡肩上由于磨床砂轮所造成的突起；在外径滚道两端的突起。

youdao

The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.

该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。

youdao

A convex rib is arranged on the edge of the clamp groove. The opening end of the main clamping plate is provided with an inclined part.

主夹板的开口端设置有倾斜部，并和副夹板的端口处设置有膨胀导向部。

youdao

Davies was set to tour Australia with the Wales squad for two Test matches at the end of May and start of June, but has withdrawn after suffering a rib injury on Saturday.

BBC: Davies announces Leicester switch