polar-frequency pulse track circuit

例句：

1. 1. The polar-frequency pulse track circuit is used to detect the movement of objects in space.
   极频脉冲跟踪电路用于探测空间中物体的运动。
2. 2.The polar-frequency pulse track circuit has been proven to be highly accurate in its measurements.
   极频脉冲跟踪电路在测量方面已被证明具有极高的准确性。
3. 3. The polar-frequency pulse track circuit is a key component in many modern electronic devices.
   极频脉冲跟踪电路是许多现代电子设备的关键组成部分。