SP

= Satellite Processor,卫星处理机; = Scratch Pad, 便笺(存储器)，暂存; = Sequential Processor, 顺序处理机; = Serial to Parallel, 串(行)到并(行); = Series-Parallel, 串并联的，混联的; = SPace, 空间，间隔；空号，【ASCII】空格符; = SPecial, 【修】特别，专用