A fire display assembly has a burner tray optionally located within a hollow space in the interior of a non-flammable structure. A capacitor includes a first electrode and a second electrode, the first electrode is electrically connected to the other of the source and the drain of the transistor, and a second signal which is a clock signal is input to the second electrode. The method includes the use of a smooth and continuous function having a set of adjustable parameters, by whose definition a relationship between the two pitches is established within the data band. An attachment structure operably connects the guide tools to the bone screws. Each main tooth body only includes a single first secondary tooth and a single second secondary tooth. The focal spot of the first laser pulse is a diffraction-limited Airy disk that has the highest laser intensity in the center of the focal spot.