An apparatus includes a gas chamber comprising a gas feed nozzle, an exhaust nozzle, and a window. The first physical computer is provided with a control device and a storage device coupled to the control device. These signals can be advertisements, entertainment, or other messages. Methods of making and using these genes and proteins are disclosed as well as methods for the recombinant expression, and transformation of suitable host cells. The first and second forward engine attachments are respectively brought to the fan frame at two points, situated beyond the second diametrical plane of the turbojet, orthogonal to the first diametrical plane, with respect to the third attachment. The bio-fertilizer composition according to the invention can promote the growth of orchid plants, increase the flowering rate and flowering quality, decrease the occurrence of root disease to prevent the usage of pesticide, and increase the beneficial components toward human health of medicinal orchids.