In 2005, a teenage sleepwalker hadto berescued after being found asleep on the arm of a 130ft crane.

2005年，一位青少年睡行症患者醒来后发现自己睡在一台130英尺的起重机吊杆中，于是不得不呼救求援。

youdao

The winch spun quickly, and the crane raised its arm into the sky; nobody had believed that a crane with such a long arm could be built.

起重机的绞盘快速旋转着，抬起它长的难以置信的手臂伸向天空。

youdao

The tower crane is mainly composed of vertical tower, horizontal tower, tower tower and balance arm, as shown in Figure 3.67.

塔式起重机主要由竖直塔身、水平塔臂、塔顶和平衡臂等主要部件组成，如图3.67所示。

youdao

Archer has seen a guy get knocked out from a blow to the head by a crane arm.

FORBES: Hollywood Hard Hats

The capsule can hold 14 people and is attached to a crane-like arm.

WSJ: Royal Caribbean's ship Quantum of the Seas