每个螺线管回路的一半都换成了铝卡，其中嵌入了细小的维卡合金棒形磁铁。

One-half of each solenoid loop was replaced with an aluminum card into which tiny vicalloy bar magnets were embedded.

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镜子是一个有关信息回路的妙喻。

The mirror is a clever metaphor for informational circuits.

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45分钟主回路的水位继续下降。

45 min the water level in the primary loop continues to drop.

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And even once we acquire those skillful movements the circuits that produce those movements need to be continually recalibrated as the body changes, as it grows and then ages we need to make those recalibrations or our movements will again become clumsy like those of a child.

即使你掌握了这些复杂的动作，产生这些动作的神经回路还会根据你的体态不断作出调整,随着这些回路的老化，你要做的这些调整，或者说动作又会像孩提时那样,变得笨拙起来。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选