ditch digger 开沟机
self-propelled ditch digger [机] 自走式挖掘机
rotary blade ditch digger 旋转刀片式挖沟机
ditch digger for drain laying 铺设排水管用挖沟机
A ditch digger can work an hour of overtime for extra pay, and a piece worker earns more the more he or she produces.
一个挖沟的工人加班一小时可以拿到更多钱，计件工完成的件数越多，赚得越多。
Blue Digger looked at Red Truck down in the ditch.
蓝色挖掘机看见红色的卡车在沟里。
Computing and analyzing the reliability of ditch digger under many loads, such as the pull, the drag of ocean current and the edaphic drag.
计算分析了挖沟机在受到牵引力、海流力、土壤阻力等多种载荷作用下的可靠性。
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