Similar Vectors Fuel Cell Apparatus- Humidified Oxidant 16 2 8 Fuel Cell Apparatus- Pressurized Liquid Reactants 19 2 10 Fuel Cell Apparatus- Pumped Liquid Reactants 24 3 13 Glass Fuel Cell Schematic 9 2 4 E85 Ethanol 4 2 1 Flex Fuel E85 Ethanol 17 3 9 Powered By Ethanol 4 2 1