fac是什么文件？

FAC

= FACsimile,傳真; = File Access Channel, 文件存取通道; = Filter Address Correction, 過濾[篩選]程序地址校正; = Floating ACcumulator, 浮點累加器; = Frequency Analog Computer, 頻率模擬計算機; = Frequeney Analysis and Control, 頻率分析和控制