yán / jiū / rén / yuán / tōng / guò / shù / zhí / fēn / xī / yù / cè / le / hé / liú / de / shuǐ / wèi / biàn / huà研究人员通过数值分析预测了河流的水位变化。The researchers used numerical analysis to predict changes in the river's water level.