对大型斗轮挖掘机臂架，通过考虑局部动力效应，推导了在地震荷载作用下结构单元的修正公式。
The modified formula for the boom of large complicated bucket wheel excavator has been put forward under earthquake, included the local dynamic effect.
又名液压钳，由挖掘机、装载机等的液压泵提供动力，能够粉碎混凝土清理出其中的钢筋并整理装车。
Hydraulic pulverizer, also known as hydraulic clamp, by excavators, loaders and other hydraulic pump to provide power, able to crush the concrete to clean out the reinforcement and finishing loading.
为了提高液压挖掘机混合动力系统的效率，提出了一种对其动力系统进行优化的参数匹配方法。
In order to improve the efficiency of hybrid power system applied in hydraulic excavator, a parameter matching method was developed to optimize the power system.
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