采用复刚度法对某型直升机救生绞车支架进行表面阻尼处理的分析。
The complex stiffness method is adopted to carry out the analysis of surface damping treatment for the support of life winch of a certain typed helicopter.
料斗升降机是起重机械中的一种单斗提升的升降机，一般由带走轮的料斗、轨道及其支架、牵引绞车和滑轮组成。
The hopper elevator is a kind of single bucket elevator, which is composed of a hopper, a rail and a bracket, a traction winch and a pulley.
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