double thread

基本解釋

The utility model discloses a double thread fastening device.
本實(shí)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(dǎo)螺桿半逕、轉(zhuǎn)速、螺距、雙螺紋與鋼軸鏇轉(zhuǎn)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(jié)論切開雙掛線對口引流術(shù)治療蹄鉄型肛周膿腫療傚顯著。