However biochemists have achieved certain steps of the multiplicationprocess in cell-free media.
可是，生物化学家已完成了在无细胞培养基上增殖过程的某些阶段。
2
Back then, I thought memory was a deliberate, cognitive process, like remembering multiplication tables or lyrics or where the keys were.
那时，我认为记忆是一个需要细心思量的认知过程，就像记住乘法口诀表、歌词，或者钥匙放在什么地方那样。
3
On the basis of the introduced experimental information, the process of calculating the effective multiplication factor of MOX fuel experimental reactors using MCNP is introduced.