girdle canal

例句：

1. 1.The girdle canal is a crucial part of the irrigation system.
   腰带沟渠是灌溉系统的关键部分。
2. 2. The girdle canal was used to transport water from the river to the farmland.
   腰带沟渠用于将河水从河流输送到农田。
3. 3. The girdle canal was constructed to divert water away from the floodplain.
   腰带沟渠被建造来引导水流远离泛滥平原。