expanding down coiler

例句：

1. 1.The expanding down coiler is a crucial component in the manufacturing process.
   扩张的下线圈器是生产过程中的关键部件。
2. 2. The engineer used the expanding down coiler to create a complex design.
   工程师使用扩张的下线圈器来创造复杂的设计。
3. 3.The expanding down coiler was responsible for maintaining the accuracy of the machine's measurements.
   扩张的下线圈器负责维护机器测量的准确性。