Center pivots have technology that allow each nozzle to vary on and off.

- 中心枢轴具有允许每个喷嘴打开和关闭的技术。

Most farms in the basin either irrigate by flooding their fields or by center pivot systems but those systems overwater some parts and underwater others.

- 流域内的大多数农场要么通过灌溉田地，要么通过中心枢轴系统进行灌溉，但这些系统在某些部分浇水过多，而在其他部分则在水下。