文中并探讨了塑胶导螺杆半径、转速、螺距、双螺纹与钢轴旋转模式对钢珠表面检测覆盖率影响。
The influence of coverage due to the radius, angular velocity, pitch , double thread of plastic screw, and rotational mode of steel axis are also discussed in here.
结论应用双螺纹加压螺钉内固定术治疗老年股骨粗隆间骨折，手术创伤少，并发症少，死亡率低，优良率高，是目前治疗老年股骨粗隆间骨折病人较安全的一种内固定方法。
Conclusions the internal fixation with compressive screw is a safer treatment to the elderly patients with intertrochanteric fracture, which is an operation with little trauma and less complications.
用螺纹联接并起紧固作用的零件称为螺纹紧固件。常用的螺纹紧固件有螺栓、双头螺柱、螺钉、螺母、垫圈等。
Parts with threads used for joining and fastening are called screw fasteners. The most widely used components as screw fasteners are bolts, double screw bolts, screws, nuts, washers.
方法：应用中空双头加压螺纹钉加折断式螺钉治疗股骨颈骨折。
Method: Treatment of femoral neck fractures using hollow double ends compressive screws and breaking screws.
双端螺纹松质骨加压螺钉的特点是两端螺纹具有不同的螺距，无螺帽。
Compression cancellous bone screw with both ends thread is a Variable pitch screw designed tO provide rigid 'fixation of cancellous bone fracture.
作者设计了双颈滑动加压螺纹钉。
The authors designed a double barrele sliding compression screw.
主轴叶片有螺纹和非螺纹以及单，双罩两种可选。
Assorted spindle vane configurations with threaded and non-threaded ends, single and double shrouds.
加氢装置用双壳程换热器分为法兰式和螺纹锁紧环式两种。
The double shell side heat exchanger for use in hydrogenated unit is divided into two kinds of flange type and thread lock ring type.
从试验和数值分析两个方面研究了螺栓预紧力矩对LY12CZ铝合金双盖板对接螺纹联接件微动损伤的影响。
This article studies the influence of the bolt tightening torque on the fretting damage of LY12CZ aluminium alloy double shear lap bolted joint by experimental and conumerical analysis.
目的初步比较经颈前路单枚单头螺纹中空加压螺钉与双头螺纹中空加压螺钉内固定治疗齿突骨折的效果。
Objective To compare the clinical effectiveness of fixations of odontoid process fractures preliminarily with anterior single one-threaded and double-threaded canulated compressive screws.
本文通过对在双滚柱机上滚压螺纹时，形成尺寸链的分析，找出影响螺纹精度的因素，并提出了解决途径。
Through the analysis of dimensional chain when rolling thread on double-roller machine tool, the effective factors of thread precision were presented, and the way to solve was given.
目的设计与新型髓内钉相配套的双皮质自攻螺纹交锁螺钉，并对其生物力学性能进行对比研究。
ABSTRACT: Objective To compare the biomechanical characteristics by designing newly manufactured cortex self tapping interlocking screw matched with interlocking nail.
本实用新型公开了一种双头螺纹紧固装置。
The utility model discloses a double thread fastening device.
我公司有各种设备198台，主要生产全螺纹螺杆、双头螺柱、圆螺母、吊环、销类等。
My company has a variety of devices 198 Units, mainly the production of full-thread screw, double-headed stud, round nuts, rings, pin and so on.
本文主要运用线性理论分析了内开槽螺纹波导回旋管与双电子注同轴腔回旋管。
This thesis analyse the linear theory of Gyro-TWT with spiral corrugated waveguide and two-beam coaxial gyrotron.
双针具有很高的拉伸强度螺纹钢筋拼接。
Twin-needle reinforced stitching with a high tensile strength thread.
翼缘法兰螺栓应为双头螺栓，螺纹为全长型，内径600mm或以下的法兰的螺栓至少为m 16，内径600 mm以上的法兰的螺栓至少为m 20。
Girth flange bolting shall be of stud bolt type, threaded full length, and at least M16 for flange of 600 mm and smaller inside diameter and at least M20 for over 600 mm inside diameter flange.
三枚中空双头螺纹加压钉比三枚实心螺纹钉、三翼钉在抗压、抗弯、抗扭强度和刚度上占有一定的优势。
The 3 hollow double heads compression screw appear to offer distinct advantage over the 3 solid screw, trifin in the against pressure, against bending force, torsional strength and torsional rigidity.
4英寸）钻铤NC35螺纹加工LE螺纹、应力槽、双台肩后进行了实物抗扭性能试验，证实双台肩钻铤具有很好的抗扭性能。
After processing LET thread, stress groove and double shoulder connection for the NC35 thread of Drill Collar in 43/4 inch, torsion tests were done.
利用9具成年新鲜股骨尸体标本，分别采用中空双头螺纹加压钉、实心螺纹钉、三翼钉进行股骨颈骨折内固定，并进行生物力学实验。
Using 9 cadaver femora instrumented, the fracture of femoral neck was fixed with 3 hollow double heads compression screw, 3 solid screw and Trifin respectively.
双梯形螺纹使得操作更加快速。
双梯形螺纹使得操作更加快速。
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