A module filled with an organic porous ion exchanger is placed midway on a pipe for transporting high-purity water to be supplied to a point-of-use. The present invention resets the radio link control layer in time when the path between the universal terrestrial radio access network and the receiving side is failed or invalid, therefore it is advantageous to maintain the stability and self-recovery of system. Each lens of the imaging lens group has a refractive index less than 1. The patterned semiconductor layer includes a channel layer and a photosensitive resistance layer.