Effects of Exogenous Spermidine on Polyamine Contents and the Activities of the Enzymes Relating to Respiratory Metabolism in Cucumber Roots Suffering Hypoxia是什么意思_Effects of Exogenous Spermidine on Polyamine Contents and the Activities of the Enzymes Relating to Respiratory Metabolism in Cucumber Roots Suffering Hypoxia在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句