There is provided a negative radiation-sensitive composition, which is suitable for exposure of a far ultraviolet light comprising a wavelength 193 nm of ArF excimer-laser, freed from causes of resolution deterioration such as swelling due to permeation of a developer and residual of a resist film between lines of the pattern, and capable of forming a high resolution pattern. A fuel cell generates power by electrochemical reaction using the hydrogen and an oxidizing agent. A latch is provided to hold the melee component in the stowed position.