loop filament

例句：

1. 1. The printer uses a loop filament to print text on paper.
   打印机使用线圈丝在纸上打印文字。
2. 2.The new electronic device has a loop filament that can be easily replaced.
   新型电子设备有一个可轻易更换的线圈丝。
3. 3.The scientist found the loop filament was responsible for the device's failure.
   科学家发现线圈丝是导致该设备故障的原因。