synchronous RAM同步随机存取存储器synchronousadj.同时的；同步的synchronous time-division同步时分synchronous receiving motor同步接收电动机synchronous digital process[计] 同步数字处理synchronous earth satellite同步地球卫星synchronous A. C sampling同步交流采样synchronous output analysis同步输出分析synchronous web application异步Web应用synchronous periodic signal同步周期信号synchronous pulse generator同步脉冲发生器synchronous digital network同步数字网