A method for growing stoichiometric lithium niobate and lithium tantalate single crystals is provided. The second mover assembly moves the second stage relative to the first stage along the first axis, along the second axis, and along the third axis. Removing the partial configuration coincident with a predetermined condition among the configurations, an analytical configuration model is produced, being necessary for use in analyzing. The virtual call center determines transaction information based on at least one of the key text phrase, the automated service identifier, or an identifier of the wireless communications device. The voltage converting circuit is electrically connected to the second USB contacting pin to convert the voltage signal to a predetermined level. The optical module further includes a fiber sheet including a first resin sheet having an adhesive layer on one side, a plurality of second optical fibers wired on the adhesive layer of the first resin sheet, and a second resin sheet attached to the first resin sheet so that the second optical fibers are sandwiched between the first and second resin sheets.