female ferrule（母插口）是什么意思？音标发音+图解场景

母插口 /ˈfiːmeɪl ˈfɛɹuːl/ n

English: female ferrule · 母插口

释义：Metal tubing into which the male ferrule fits to join the two sections of the rod (butt section and tip section).

这个词出现在以下图解场景（2）

抛竿钓鱼竿部件 飞蝇钓竿