I'm going to put you in various positions and then ask you what is the direction of gravity.
我会把你放置在不同的情境中，然后问你重力的方向。
The movement of the calcium crystals sends a signal to the brain to tell us the direction of gravity. This is not the only cue the brain receives.
钙晶体的运动向大脑发出信号使我们感知地球引力的方向，但这不是大脑接收到的惟一信号。
However, the semicircular canals that the researchers stimulated to control walking and balance detect rotational movements of the head, not the direction of gravity.
然而研究人员通过刺激可以控制行走和平衡的半规管却是检测头部的转动而不是重力的方向。
However, the semicircular canals that the researchers stimulated to control walking and balance detect rotational movements of the head, not the direction of gravity.
然而研究人员通过刺激可以控制行走和平衡的半规管却是检测头部的转动而不是重力的方向。
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