常見例句用作名詞 (n.)No toxin-production mutants were screened with chemical mutagen methods.本論文通過化學(xué)誘變劑方法篩選不產(chǎn)生毒素的突變體，比較毒素突變體與野生菌的有關(guān)生物學(xué)性狀及其對(duì)水稻的侵染，并對(duì)毒素引起植物的壞死作用進(jìn)行了研究。 返回 mutagenically