mobile hoists

例句：

1. 1. The constructionsite needed a mobile hoist to moveheavy equipment.
   工地需要一台移动式起重机来移动重型设备。
2. 2. The engineer inspectedthe mobile hoist before it was usedfor the first time.
   工程师在首次使用之前检查了移动式起重机。
3. 3. The mobilehoist was designed to be easily transported and set up on any job site.
   移动式起重机设计为易于运输和在任何工作现场设置。