目的评价内锥及外锥形椎弓根螺钉固定的生物力学特点。
Objective To evaluate two types of pedicle screw fixation strength.
当锥角相对较大时切削外锥面和内锥面推荐使用这种方法。
This method is recommended for taper turning of external and internal surfaces when the taper Angle is relatively large.
由内螺纹拉锚、套管、内锥外螺纹芯套、外锥弹性夹芯、衬套等组成。
The strain clamp comprises an internal thread pull anchor, a sleeve, an inner-cone external thread core sleeve, an outer-cone elastic clamp core, a bush, and the like.
这款配件由平行丝线和外锥组成。连接焊接在椎体上。材质为316不锈钢。
This fitting design consists of parallel threads and an external cone. The connection seals on the cone. Stocked in 316 Stainless Steel material.
本文在分析各种无级变速器和无级变速自行车的基础上，把钢球外锥式无级变速器进行部分改装，从而形成了自行车的无级变速装置。
Based on the analysis of various CVT and CVT bikes, in this dissertation, we change some parts of the Kopp-B CVT forming a new kind of CVT used to the bicycle.
用解析方法计算了受静水外压载荷作用的有环壳过渡段的锥—柱组合壳中的应力值，并用瑞利法计算了其失稳临界载荷。
Stresses in cone cylinder shells with toroidal transition inserted are investigated by an analytical method, and buckling pressures for the shells are presented by Rayleigh Ritzs method.
方法：眼内容物剜出术后，剪断外直肌和视神经，一期植入羟基磷灰石义眼座于肌锥内。
METHODS: After evisceration, the abducens oculi muscle and the optic nerve were cut, and the hydroxyapatite sphere was implanted primarily in the muscular pyramid.
砧骨短脚或砧骨窝及外半规管是乳突手术中确定FN锥曲段的重要标志。
Short limb of incus(or incudal fossa) and lateral semicircular canal are important landmarks by which pyramidal segment of FN might be located in manipulation of mastoid.
机床除根锥角需要手动调整外，切削运动均为菜单式操作，由程序自动控制。
The machine cutting is menu operation controlled by the program automatically except adjusting the cone angle by hand.
键槽式、设置螺栓式或锥式直接输入的外箱应采用调配器法兰。
An adapter flange will be needed in the case of the direct input method with a key type, set screw type or taper collet type.
转动杆固定在拆卸锥套外。
锥齿轮和曲柄轴都在油室内，除定期检查外，无需专门关注。
The bevel gears and the crank shafts are totally enclosed in oil chamber and require no attention, except periodical checks.
采用二维轴对称弹塑性有限元法对比分析了不同外模模角和游动芯头锥角的配合对拉拔铜管的影响。
This paper focuses on the comparison of the matching of dies and floating plugs with different Angle with the aid of 2d axisymmetric elastic-plastic FEM and the influence of drawing copper tubes.
采用二维轴对称弹塑性有限元法对比分析了不同外模模角和游动芯头锥角的配合对拉拔铜管的影响。
This paper focuses on the comparison of the matching of dies and floating plugs with different Angle with the aid of 2d axisymmetric elastic-plastic FEM and the influence of drawing copper tubes.
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