电动-脚踏两用工业缝纫机
combined electric and treadle sewer for industry
水斗式水轮机转轮设计
Design of the Pelton Turbine Runner
水斗式水轮机水电站
pelton turbine hydroelectric power station
水斗式水轮机的直径比
Diameter Ratio of Pelton Turbine
三斗折式缝纫机
sewing machine with 3-drawers and folding cover
履带行走式单斗挖掘机
crawler walking single-dipper excavator
漏斗式刍料吹送机
hopper type forage blower
链斗式提升机
chapelet
chain bucket elevator
chain-bucket conveyor
continuous bucket elevator