The lamp stalk includes a plurality of protruding rings and the vehicle stalk includes a threaded engagement portion.
所述灯柄 部包括多个突出环，并且所述车辆柄部包括带螺纹的接合部。
The pulley is fixedly installed on the wall, and the rope which is threaded through the pulley is connected with the lamp-socket, then the other end of the rope is connected with a fixed object.
其滑轮固定安装在墙上，灯座与穿过滑轮的绳索连接，绳索的另 一端与固定物连接。
应用推荐