Safety of earth - moving machinery - specification for hydraulic excavator and backhoe loader boom lowering control device 运土机械的安全性.液压挖掘机和反铲装载机起重吊杆放下控制装置
It also performs optimal design of hoist mechanism and provides basis for application and research on it 对起重吊臂机构进行了优化设计，建立了起重吊臂优化设计程序，为工程应用和进一步研究提供了依据。
Testing earth - moving machinery - method for the evaluation of lift capacity of pipelayers and wheel tractors or loaders equipped with side boom 运土机械试验.第6部分:侧面带起重吊杆的管道敷设机和轮式拖拉机或装载机的升降能力评定方法
