The semi-automatic rotary drum grinder has the advantages of less labor and time, low labor intensity, high operation efficiency and high automation level.
具有省时省力、劳动强 度低、作业效率高、自动化程度高的优点。
The plan for the constrUction of urban rail transit must meet the demand of metropolis traffic, and achieve the purpose of Iow cost, high operation efficiency, and quick flnancial retum.
城市轨道交通建设规划首先要解决大城市交通的需求，并达到建设耗资低、运营效率高、见效快的目的。
The hydraulic reversing plough has the advantages of small rotation radius, flexible rotation, leveled soil plowing, good tillage effect, high plough frame intensity and high operation efficiency.
转动半径小、转动灵活，翻地平整，耕地效果好、犁架强度高，作业效率高。
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