double thread

基本解释

The utility model discloses a double thread fastening device.
本实用新型公开了一种双头螺纹紧固装置。
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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.
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。
Conclusions There a significant curative effect in the treatment for horseshoe-shaped perianal abscess by the procedure of incision and double thread-drawing drainage.
结论切开双挂线对口引流术治疗蹄铁型肛周脓肿疗效显著。