基于之前的研究，很多研究者认为新神经元可以稳固记忆回路，或者是在其他未知方面作为形成新记忆所必须的部分。
On the basis of previous studies, many researchers think new neurons stabilize memory circuits or are somehow otherwise necessary to form new memories.
三个未知因素，好比解三元方程，对一个游泳练习的比喻来说好像太过分了。
Ok, three unknowns, but solving for aX+bY+cZ = d is too much to ask for in a swim drill metaphor.
当采用通用有限元软件对永磁同步电动机进行分析时，存在着电机定转子轴线相对位置未知的问题，而确定这个相对位置是进行电机负载磁场计算的前提。
When using universal finite element software to analyze PMSM, the relative position of stator and rotor axis is unknown, which is the precondition for load field calculation.
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