悬臂起重机提升和移动重物的机器，它由一个带有缆绳和滑轮的可移动的、并与一根由向上静止横梁的底座连接的起重杆组成
A machine for hoisting and moving heavy objects, consisting of a movable boom equipped with cables and pulleys and connected to the base of an upright stationary beam.
由关节连接的由关节连接组成部分的；连接的
Consisting of sections united by joints; jointed.
广播网由线路或微波中转站连接的电台或电视台网络
A chain of radio or television broadcasting stations linked by wire or microwave relay.
将一个值与一特定属性相连接的动作。
The act of linking a value to a particular attribute.
