occipital ring

• 颈环

occipital ring的用法和样例：

例句

1. The cylinder neck ring displays the name of the current owner of the cylinder.
   颈环显示着钢瓶现在的所有者的名字。
2. A threaded neck ring is attached to the tapered end so that a protective cylinder cap can be installed.
   锥状顶端装有带螺纹的颈环，可以安装保护性的钢瓶帽。