mast crane

例句：

1. 1. The mast crane is a symbol of the ship's strength and resilience.
   桅杆鹤是船只力量和韧性的象征。
2. 2. In the old days, the mast crane was a common sight on the docks.
   在旧时代，桅杆鹤是码头上常见的景象。
3. 3. The mast crane is a unique bird that can be found only in certain regions of the world.
   桅杆鹤是一种独特的鸟类，仅在某些世界地区发现。