grab hopper dredger

• 抓斗挖泥船

grab hopper dredger的用法和样例：

例句

1. As the ponds are quite small and not very deep, it has been proposed that a single grab dredger be used for the operation.
   由于池塘面积较小而且水不太深，已建议在操作时使用单抓斗挖泥机。