screw-socket

基本解释

It's much harder, they say, to dislocate a screw than a round-ball-and-socket joint.
这种螺纹状的关节与球状关节相比，更难发生脱臼的情况。
As for the utility model, the lamp head containing the screw-socket or the socket and the supply transformer and the lighting bulb are two separate parts, connectable and dismountable.
本实用新型将含有螺口或插口及电源变压器的灯头部分与发光体灯泡设计为两个独立组件、可装接、可脱卸。
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A light bulb is disposed on the lamp-socket, which can give out intermittent flash. A screw of the lamp-socket is fixed in the front end of the grip, and connected to the structure of power switch.
灯座上固设有能发出间歇性闪光的灯泡，灯座螺固在握把的前端，并电连接于电源开关机构上；
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