本药房按方配药，五十年无差错。

Our drug store has filled prescriptions without mistakes for fifty years.

香农指出，噪声限制了信息在保持无差错的情况下沿通信信道传递的速度。

Shannon showed that noise sets a limit on the rate at which information can pass along communication channels while remaining error-free.

在给定信号强度和噪声水平的情况下，以比特每秒为单位给出的最终限制是无差错通信的最大绝对速率。

The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given signal strength and noise level.