1)  headless nail,sprig
无头钉
2)  endless rolling
无头轧制
1.
Research and development of multi-drive physical simulation platform of the endless rolling system;
无头轧制多级传动模拟实验平台的研究与开发
2.
Welding technology of billets during endless rolling;
无头轧制过程中钢坯的焊接技术
3.
Multidrive system of endless rolling of hot stick mill in Tangshan Iron and Steel Co;
唐钢无头轧制多级传动系统
3)  endless welding rolling
无头轧制
1.
Functional analysis and configuration of bar and wire rod endless welding rolling system;
无头轧制系统在棒线材加工中的应用
2.
System Control at Hydraulic System of Flash Welder in Endless Welding Rolling;
无头轧制中闪光焊机液压控制系统研究
3.
Technology of Bar and Wire Rod endless welding rolling could eliminate some traditional rolling techniques,such as intervals between billets,cutting heads and rears of rolling products,etc.
棒线材无头轧制工艺可消除传统轧制工艺中钢坯间的时间间隔、剔除轧件的切头去尾等工序,近年来在国内外钢铁企业得到了广泛的应用。
4)  non head rivet
无头铆钉
5)  News without Source
“无头消息”
6)  canard cycle(without head)
无头鸭环
参考词条
补充资料：泡头钉
1.钉的一种。钉帽鼓起如水泡，故称。也叫泡钉。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。