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.
由于每根螺杆两端螺纹的旋向相反，螺杆转动时，由螺杆啮合线形成的泵工作腔。
Because each thread rotate to the opposite on both ends of the screw, the screw rotates, formed by the screw meshing line pump working chamber.
在工具和管子的两端安装带螺纹的接头将工具或管子连接起来。
To connect tools or tubulars by assembling the threaded connections incorporated at either end of every tool and tubular.
无接箍式套管靠管体两端的螺纹连接，所以套管外径尺寸小，可增大环形间隙，便于套管下入和提高固井质量。
It connects with threads on both ends of pipe body, which allows a smaller casing O. D. and increases annular gap to facility casing running in and improve cementing quality.
螺柱这里是指适用于中等长度圆柱杆，螺纹在一端有或两端都有，或全螺纹的产品。
The term stud as referred to herein, applies to a cylindrical rod of moderate length, threaded on either one or both ends or throughout its entire length.
可在钢桶的两端的螺纹段外侧设置着无螺纹的抗冲击光面段。
Threadless anti-impact smooth sections can be arranged on the outer ends of the threaded sections of both ends of the steel barrel.
可在钢桶的两端的螺纹段外侧设置着无螺纹的抗冲击光面段。
Threadless anti-impact smooth sections can be arranged on the outer ends of the threaded sections of both ends of the steel barrel.
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