| http://www.w3.org/ns/prov#value | - Alternatively, three or more breather openings may also be placed preferably in pairs such that they are spaced apart at opposite positions of the fuel tank 1 according to possible inclination directions of the vehicle and the degree of inclination. [0073] Even if the internal pressure of the fuel tank 1 is increased by some causes such as inclination or vibration of the vehicle and the fuel is pu
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