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。

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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。

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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。

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

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

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In other incidents, cranes have dropped loads or come close to falling apart, including a dramatic episode in which a crane's arm, or boom, nearly snapped off during Superstorm Sandy and dangled precariously over a midtown Manhattan block.

WSJ: APNewsBreak: Operator cited in NYC crane collapse