A near isogenic line strain(NILs)was selected by repeated back crossing.Two NILs of dimehypo-resistance(Rd)and cartap-resistance(Rp)were selected by 12 generations back crossing.是什么意思_A near isogenic line strain(NILs)was selected by repeated back crossing.Two NILs of dimehypo-resistance(Rd)and cartap-resistance(Rp)were selected by 12 generations back crossing.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句