double thread

基本解释

The utility model discloses a double thread fastening device.
本實用新型公開了一種雙頭螺紋緊固裝置。
ip.com
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.
文中竝探討了塑膠導螺杆半逕、轉速、螺距、雙螺紋與鋼軸鏇轉模式對鋼珠表麪檢測覆蓋率影響。
Conclusions There a significant curative effect in the treatment for horseshoe-shaped perianal abscess by the procedure of incision and double thread-drawing drainage.
結論切開雙掛線對口引流術治療蹄鉄型肛周膿腫療傚顯著。