Comparison of endhole catheters with side hole catheters.
比较端孔导管与侧孔导管。
2
Decentraction of the conn-rod small endhole center with the excircle center of the conn-rod small endhole blank, which causes the hole wall of one side getting thin with the strength dropping.
连杆小头孔中心与连杆小头孔毛坯外圆中心不同心,使一边孔壁变薄,强度下降。
3
Tie two knots in the cord outside the hole. Thread the other end of the cord through the second hole. Tie two knots in the cord.