请问manlifts和telescopichandlers是什么意思RT.原句是这样的,Load-controlvalves–alsoknownasover-centrevalves,counterbalancevalves,hose-burstcheckvalvesorboom-lockvalves–arecriticalforthecontrolandsafetyofhydrau

Question

请问manlifts和 telescopic handlers是什么意思
RT.原句是这样的,Load-control valves – also known as over-centre valves,counterbalance valves,hose-burst check valves or boom-lock valves – are critical for the control and safety of hydraulically controlled machines such as manlifts,telescopic handlers and backhoe loaders,or where the movement of a hydraulically supported load has to be controlled.这篇文章是讲阀（valve）的,根据推测那两个词应该是指某两种工程机械之类的,

Answer 1

manlifts个人直立式高空作业车（升降机,电梯类似的东西）
telescopic handlers伸缩臂装运机