Development of WG-55 ditcher;
WG—55型挖沟机的研制
A ditcher cutter for frozen soil and frozen soil with stone is developed.
设计并研制成功一种适用于冻土及夫石冻土链式挖沟机的刀具，经室内和野外现场试验证明，其使用寿命达到１３０ｈ，切削速度和挖沟作业率可达４。
Development of Cable Trencher with Vertical Auger;
立式螺旋电缆挖沟机的开发
Connected with the research and development of the first unit of hydraulic crawler trencher, the solution of overall design calculation, the calculation of traveling power, the matching of the power between traveling and cutting, the allocation of track rollers, the calculation of recoil spring of track roller frame have been found.
结合国内首次履带全液压挖沟机的研发工作,本文主要解决了总体设计、行走功率的计算、切削功率与行走功率的匹配、支重轮布置、履带张紧装置预张紧力的计算等问题。
endless chain trench excavator
循环链式多斗挖沟机
sewerage dredger
(敷设污水管用的)挖沟机
rotary drain cutter
旋转式排水沟挖掘机
To make(a tunnel) by digging.
挖出通过挖掘而挖成（沟）
a laborer who digs ditches.
挖掘沟渠壕沟的劳工。
To tunnel under(the earth or a surface feature.
挖沟在（土地或表层）之下挖沟
To make or cut channels in.
在…挖沟，在…上开筑水道
ditch the land to drain it.
在陆地上挖沟渠来排水。
a spade with a long handle for digging narrow ditches.
挖窄沟用的长把的铁锹。
They toiled all day digging the trench.
他们整天艰苦地挖壕沟。
We must dig a trench to drain away the water.
我们必须挖一条沟排水。
To dig or make a long narrow trench or furrow in.
挖或筑狭长的沟渠或细沟.
To form(a furrow, for example) with a plow.
用犁挖（畦）用一个犁挖出（如一条槽沟）
The ditch digger went back to his hole. His friend asked, "What did he say?"
挖沟人回到沟里。他的朋友便问：“他怎么说？”
A barge or boat equipped with a dredge.
挖泥船装有挖掘机的船
dredger:a barge or boat equipped with a dredge.
挖泥船:装有挖掘机的船.
excavator equipment
(挖掘机的) 挖铲装置
He dug ditches during the week and on Weekend he and Grandma dug a garden to grow some of their own food.
在平时他挖沟渠,周末和奶奶在花园里挖挖锄锄,种点自己的粮食。