Cuprates are layered materials, consisting of superconducting layers of copper oxide, separated by spacer layers. The preferable spacer material is rigid insulation. Between each leaf, a mesh like feed spacer is inserted. The splitting edge can also be incorporated into the design of the spacer plate. The center layer is a "spacer" containing holes wherever a "key" exists. The taller intake required a thinner spacer. The shoulder straps are padded with spacer cloth. The Super Bantam stock includes two recoil pads and a stock spacer. Main-chain liquid crystalline polymers have mesogenic groups linked to each other by a flexible spacer. Multiple patterning is evolving toward a combination of multiple exposures, spacer patterning, and/or EUV. The PAM sequence appears to be important during spacer insertion in type I-E systems. The glass panes are separated by a "spacer". GelRed structurally consists of two ethidium subunits that are bridged by a linear oxygenated spacer. The structure is based on two molecules of proguanil, linked with a hexamethylenediamine spacer. During post-race inspection it was determined he had raced with an illegal carburetor spacer.