telephone repeating coil

例句：

1. 1. The telephonerepeating coil is a crucial component inthe phone's internal wiring.
   电话重复线圈是电话内部线路中至关重要的组成部分。
2. 2. The engineer carefully assembled the telephonerepeating coil to ensure its proper functioning.
   工程师仔细组装电话重复线圈，以确保其正常工作。
3. 3. Due to the complexity ofthe circuitry, it was necessary totest the telephone repeating coil multiple timesbefore finalizing the design.
   由于电路的复杂性，在最终确定设计之前，有必要多次测试电话重复线圈。