The dynamic strength of rod string and the mount position of centralizer were calculated, according to the acquired deformation of rod string and its impact contact force with tube in the time domain.
根据求得的时域内抽油杆柱受力变形值以及与油管柱碰撞接触力，计算了抽油杆柱动强度和扶正器安放位置。
2
The first built-in fitment in describing is hang fitment that can mount on a bathroom the old outlet pipe or tube angle to make fixed pole hanging.
所述的第一固定件为可勾挂 于浴室中原有出水管或角管上而使固定杆悬空的吊挂件。
3
To finish this Seat Tube assembly we need to make provisions for the chain pulley mount.