A reflective color-changing liquid crystal display including a first substrate, a second substrate parallel thereto, a first color-changing liquid crystal mixture layer between the two substrates, a first electrode layer and a second electrode layer disposed is provided. Each of a plurality of access routers maintains information concerning the addresses of physically neighboring access routers. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device, and two end pipes. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cadcamming and other various rapid prototyping methods. Jewelry articles are provided representing the tomb of Jesus, to depict andor symbolize the event of the Resurrection for Christian religious adherents. Said insulating housing has a plurality of bars near two sides of each passageway for restricting each said contact vertically.