essential balm造句

• The experiment was carried out with six - group oppositifolious and alternate sister - lines through oppositifolious character transferring , initially analysing their differences in chromosomal karyotype with the method of essential balm
  摘要本文利用对生性状转育获得的六组对生和互生姊妹系，通过风油精法染色体制片，首次研究了对生玉米与互生玉米的染色体核型差异。