灌溉设备绕圆心运动，所以形成圆形农田。如果乘机去西部，路途会看到很多这样的圆形农田。

来源: ma_hu 于 2024-11-29 19:37:39 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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