Research on the Assessment of Water Resource Utilization Level and the Optimum Selection of Water Saving Irrigation Modes in Semi-arid Area in Heilongjiang Province是什么意思_Research on the Assessment of Water Resource Utilization Level and the Optimum Selection of Water Saving Irrigation Modes in Semi-arid Area in Heilongjiang Province在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句