自养突变体是从同株同核融合类群的6个不同的原种菌系制备的.Autotrophic mutants were prepared from six different stocks of the homoictic group.硝化细菌是化能合成的自养生物.The nitrifying bacteria are chemosynthetic autotrophs.细胞丧失了自养的特性,变成依赖于外加的化学能源生活.The cell lost...
Clubbing baby seals to death for their pelts is wrong.为了获得海豹皮而用棍棒打死幼海豹是不道德的。Check seals on fridges and freezers regularly.定期检查冰箱和冷冻柜的密封装置。They saw many seals off the Coast of Alaska.他们在阿拉斯加海岸外看见很多海豹....