Control squeeze shoulderbolt prevents over tightening of the clamp assembly, preventing the possibility of crushing the tube.
控制螺栓防止挤肩以上的夹具装配紧缩，防止粉碎管的可能性。
2
On the third day, as he rode daringly near the wall, confident in his hard-tried luck, a bolt from a crossbow struck him in the left shoulder by the neck.