pivot slewing crane

例句：

1. 1. The pivot slewingcrane was used to lift heavy loadsfrom the ground.
   支点式起重机被用来从地面举起重物。
2. 2. Thepivot slewing crane wasdesigned to be highly maneuverableand versatile.
   支点式起重机设计得非常灵活和多功能。
3. 3. The pivotslewing crane was used inconstruction projects to transport heavy materials.
   支点式起重机在建筑项目中用于运输重型材料。