borehole drilled with rotary excavation
continuous beam bridge with rotary construc-tion method
rotary pump
旋转泵
旋转水泵
回转泵
旋转式泵
回转式泵
回转式容积泵
转子泵
旋<转>泵
旋转筛
slide-vane type rotary pump
thread guide mechanism with rotary blades
variable-delivery rotary pump
Design for piezoelectric pump with active valve
Disk Pump with Radial Straight Blade
gear pump with asymmetric teeth
heat pump with direct-expansion solar energy collector
Heat pump with double high-temperature heat source
heat pump with screw compressor