Abstract: An injection molding system includes injecting resin into a mold, moving a mold between a first position within an injection molding machine and a second position outside the injection molding machine, wherein improvement to the injection molding system includes not moving a first mold until the injection molding machine performs N times of an injection process with the first mold, where the first mold is moved from the first position to the second position after the N times of the injection process with the first mold so a second external mold moves into the injection molding machine, and inserting a first molded part obtained based on the N times injection process with the first mold into the second mold such that resin is injected into the second mold in which the first molded part is inserted to obtain a second molded part.

Abstract: Provided are a fuel placement confirmation method and a fuel placement confirmation apparatus that can increase an underwater imaging distance, collectively image a wide region, and reliably confirm an imprint number of a fuel assembly in consideration of a water fluctuation.