double-loop的用法和样例：
词汇搭配
- double-loop network 双环网络
- double loop-sheet testing machine 双卷层薄板试验机...
- double-sided loop pile fabric 双面毛圈起绒织物...
- double loop antenna 双环天线
- double loop network 双环网络
- distributed double-loop computer network 分布式双环路计算机网...
- double loop 双环路
