( f�Capacitor, Battery Terminal`Turbine Blade, Screw Thread, Gear Tooth, Molecular Structure, Gastric Villus, Fibrous Tissue, Synovial Membrane, Nerve Fiber, Blood Cell, Circulatory Pathway, Pneumatic Tub�, Steam Pipe, Hydraulic Cylinder, Piston Rod, Fuel Injector, Ductile Material Fragment, Gear Mechanism, Turbine Shaft, Spiral Groove, Ballistic Trajectory, Neural Network Node, Molecular Chain, Fibroblast