短語詞組短語arbitrary degenerate ad primers 隨機(jī)簡并引物degenerate pcr primers 簡并引物degenerate oligonucleotide primers 設(shè)計(jì)簡并引物degenerate primers pcr 簡并引物pcrSpecial degenerate primers 特異性簡并引物degenerate primers polymerase chain reaction 簡并引物pcr 返回 degenerate primers