triple-drum scraper hoist

例句：

1. 1. The triple-drum scraper hoist is an essentialpiece of equipment for the mining industry.
   三滚筒刮板提升机是采矿业不可或缺的设备。
2. 2. The triple-drum scraperhoist was used to remove rocks fromthe mine.
   三滚筒刮板提升机被用来从矿井中移除岩石。
3. 3. The triple-drum scraper hoist hasproven to be very efficient in reducing theamount of waste generated during the mining process.
   三滚筒刮板提升机在减少采矿过程中产生的废物量方面表现出极高的效率。