Effects of Exogenous Spd on NO_3~--N,NH_4~+-N Contents and Nitrate Reductase Activity of Salt Stressed Leaves and Roots of Cucumber Seedlings是什么意思_Effects of Exogenous Spd on NO_3~--N,NH_4~+-N Contents and Nitrate Reductase Activity of Salt Stressed Leaves and Roots of Cucumber Seedlings在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句