他们把最粗的一根绳索的一端扎在大树上，另一端绑在推土机上。然后推土机从桥上开到河的对岸，把绳子从出事汽车的上空横过去。
They tied one end of their thickest rope to a tree and the other to a bulldozer, which was then driven across the bridge to the opposite bank, stretching the rope over the bus.
本课题以推土机的作业效率最大化为目标，设计了一套推土机作业控制系统。
The subject designs a set of automatic control system which is aiming at maximizing the operation efficiency of bulldozer.
本文通过对农用液压推土机的系统研究，指出：农用液压推土机是以农用拖拉机配置液压推土铲组成。
On the basis of systematic study, this paper points out: the agricultural hydraulic bulldozer is composed of agricultural tractor with hydraulic dozer blade.
应用推荐