pulsed counter

例句：

1. 1. The pulse-code counter is used to measure the frequency of pulses sent through the system.
   脉冲编码计数器用于测量通过系统的脉冲频率。
2. 2. The pulse-code transmitter converts electrical signals into pulses that can be transmitted over long distances.
   脉冲编码发射机将电信号转换为可以远程传输的脉冲。
3. 3. The pulse-code receiver detects and decodes these pulses to recover the original signal.
   脉冲编码接收器检测并解码这些脉冲，以恢复原始信号。