The mutant 31BK was engineered, in which homologous recombination of the aroBKanr gene cassette into the aroD locus(aroD::aroBKanr)of the E.是什么意思_The mutant 31BK was engineered, in which homologous recombination of the aroBKanr gene cassette into the aroD locus(aroD::aroBKanr)of the E.在线翻译_英语_读音_用法_例句