Polyester mesh-supported collagen tubes grown in the subcutaneous tissue of sheep around Silastic mandrils were tanned in glutaradehyde.
其研制过程是将包绕有聚酯网的硅胶棒埋入羊的皮下组织，再将形成的经聚酯网为支架的胶原管经醛化处理。
2
The object of this dissertation is to calculate the height of screw mandrils from CAD data and develop a mechanical hand to adjust screw mandrils' height automatically.