�Gearwheel, Cathode Ray Tube, Spiral Shell, Pneumatic Cylinder, Microchip, Dendrite, Fractal Pattern, Pistons, Turbine Blade, Optical Fiber, Vesicle, Gearbox, Biomechanical Limb, Circulatory System Vessel, Pneumatic Valve, Microelectronic Component, Fibrous Network, Ratchet Mechanism, Axon Terminal, Laminated Structure, Motor Shaft, Ventral Tube, Ductile Material Fragment