Taking southern mountainous land of Ningxia as an example, the paper briefly introduces the ridge coefficient calculation process.
本文以宁夏南部山区为例，简要地介绍了田坎系数测算过程。
Taking southern mountainous land of Ningxia as an example, the paper briefly introduces the ridge coefficient calculation process.
本文以宁夏南部山区为例，简要地介绍了田坎系数测算过程。
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