Effects of Sowing Density on Quality of Medium-seedling Nursed with Two-layer Plastic Film and Grain Yield in Mechanical Transplanting Rice是什么意思_Effects of Sowing Density on Quality of Medium-seedling Nursed with Two-layer Plastic Film and Grain Yield in Mechanical Transplanting Rice在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句