bucket trenching machine

endless chain trench excavator

循环链式多斗挖沟机

rotary drain cutter

旋转式排水沟挖掘机

sewerage dredger

(敷设污水管用的)挖沟机

bucket wheel suction dredger

斗轮铲式抽吸挖泥机

crawler walking single-dipper excavator

履带行走式单斗挖掘机

Kinematics and Dynamics Analysis of the Shovel Unit of Agricultural Hydraulic Excavator

农用挖掘机铲斗机构的多体运动学与动力学研究

We should have the dredge, barges and draglines in place about the same time.

差不多要在同时使挖泥机，驳船和索斗铲各就各位。

Hinge loading calculation on excavating forces for Doosan DH80-7 excavators

斗山DH80-7挖掘机整机挖掘力下的铰点力计算

To make(a tunnel) by digging.

挖出通过挖掘而挖成（沟）

Discussion on Work Speed of Dipper Stick of a Hydraulic Excavator

液压挖掘机斗杆作业速度问题的探讨

continuous bucket elevator

链斗提升机;斗式连续升运器;多斗式提升机;多斗提升机

a laborer who digs ditches.

挖掘沟渠壕沟的劳工。

The Bucket Wheel Excavator Dynamic Analysis Based on Virtual Prototype Technology;

基于虚拟样机技术的斗轮挖掘机动态性能分析

Study on Computer Aided Bucket Wheel Design;

轮斗挖掘机计算机辅助设计计算的研究

bucket ladder dredger

链斗挖泥船斗式采泥器

To tunnel under(the earth or a surface feature.

挖沟在（土地或表层）之下挖沟

4 For dredging works, only mechanical dredgers with bucket-type closed-grabs shall be used for the dredging of river bed or ponds.

进行挖泥工程时，只可使用密封抓斗式的机械挖泥机，以挖掘河床或塘底的淤泥。

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。