The socket is composed of an insulating base body, plug pin holes of integrated component pins and connecting pins vertical to the base body.

插座由绝缘座体、集成组件管脚的插脚孔和垂直于座体的接脚构成。

youdao

Oh, what pleasure to plug in my three-pin British plug the other evening in Inner Mongolia, so very far from home.

BBC: A universal plug socket... at last?

Ibiden's pin-grid packages plug into circuit boards via dozens of tiny prongs.

FORBES: It's all in the packaging

The cape plug-in boards can be plugged into BeagleBone's two 46-pin dual-row expansion headers, providing similar headers so that up to four cape plug-in boards can be stacked at a time.

ENGADGET: BeagleBone gets plenty of expansion options with new 'cape' add-ons