A fluid injection nozzle is mounted on a fluid injector valve in order to control the flow of fluid passing through an injection hole of the fluid injector. Each of the droplet ejection heads includes at least one nozzle array constituted from a plurality of nozzles linearly aligned. The data portion of the channel includes user data, and pilot symbols that provide energy for channel estimation during reception of the data portion. A lookup is performed in a number portability database using the called party information to locate a routing number for the called party. Alternatively, directions may be given as the vehicle is parked under the control of the driver. 0 and 150 nm, and the molding has a curved surface having a radius of curvature of not less than 40 mm and protruding on a surface side, or a flat surface, in the transparent window.