compound dredger

• 混合挖泥机,复式挖泥机

compound 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。
2. Where tight dredging depth tolerances are required to dredge contaminated materials the bucket-type closed-grab dredger shall incorporate a visor.
   在挖掘受污染物料时，若严格规定了挖泥深度容限，则密封抓斗式的挖泥机应设置一个护罩。