1) turritella bacillum
棒锥螺
2) conical column milling cutter of an equal helix angle
等螺旋角锥度棒铣刀
1.
The conical column milling cutter of an equal helix angle cuts smoothly and with great efficiency and durableness, but it is difficult to manufacture the cutter for its blank is conical,and the lead of helix isn't constant when it has a constant helix angle ω.
等螺旋角锥度棒铣刀具有切削平稳、切削效率及耐用度高等特点。
4) Pedicle-guide
螺锥
1.
Methods A pedicle piercer with early warning device(Pedicle-guide to call for short) was designed,which could warn by sound and light at once when the pressure increased stress at the threshold.
目的:研制一种带预警装置的椎弓根螺锥,在胸腰椎(T_8～L_5)椎弓根系统内固定钉道准备过程中,螺锥误入椎管或穿透椎骨之前可提供实时自动报警,提示术者改变方向,避免损伤重要神经、血管。
5) Tapered pins
锥度量棒
6) tapered light pipes
锥形光棒
1.
To make beam converge at the LCOS,CPC optical collector and tapered light pipes are analyzed respectively as beam couplers.
使用LED阵列作为微投系统的光源,分别采用CPC(Compound Parabolic Con-centrator)集光器和锥形光棒来耦合光束,使光源发出的光束会聚在LCOS上。
补充资料：锥笋螺
