loop-coil

例句：

1. 1. The engineer made a loop-coil to hold the screw together.
   工程师做了一个线圈来固定螺丝。
2. 2. The old lady had a loop-coil of yarn for her hair.
   老妇人有一条线圈式的纱线用来做头发。
3. 3. The scientist used a loop-coil to measure the resistance of the wire.
   科学家用一个线圈来测量电线的电阻。