A transparency adapter structure of a scanner having a replaceable transparency adapter includes a base provided with at least one pivot base. In an embodiment of the invention, a generic model simulation method can include mapping a specifically formatted process representation into a generic process model, and providing the generic process model to a simulation engine. The protuberance thus comprises the same material as the surrounding wall portion. Accordingly, less human effort is involved and cost of network maintenance greatly decreased. The current positions of the PCB panel and the good PCB unit are measured so as to calculate a target position of the good PCB unit and an error between the target position and the current position of the good PCB unit. The surgical implement can be attached to a distal end of the shaft rod operable with the lever.