短语词组短语sample -and-hold cell [电子]抽样保持单元Sample -and-hold filter 采样保持滤波电路pulse sample -and-hold circuit 脉冲试样和保持电路英语;脉冲取样保持电路;脉冲抽样保持电路infinite sample -and-hold 无限采样 返回 sample-and-hold