3.3 Application of the linkages r Can you give some examples used in machinery? r Crank-rocker blender r Crank-slider block; piston engine, punch r Others: bus door driving mechanism crank-shaper hand-operated well pump3.3 Application of the linkages Can you give some examples used in machinery? Crank-rocker: Blender, Crank-slider block: piston engine, punch Others： bus door driving mechanism， crank-shaper hand-operated well pump