It wants to be relaxed for distance, with the ciliary muscle contracting only for brief periods of close focusing.

只有由睫状肌收缩，短暂的近调焦使远距离得到松弛。

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Result; The abnormal rate of spontaneous potentials was 82% in limbs muscle, 72% in amplitude of MUP and 60% in early recruitment as strong contracting.

结果：本组资料显示所检肌时限异常率占82%，波幅降低率占72%，大力收缩早募集占60%。

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Objective To obtain an experimental relationship between mechanical property and electrical property of an contracting muscle.

目的获得肌肉收缩力学特性与其电生理特性间的实验关系。

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We're going to come back and talk about the action potential a little bit more when we talk about how the heart works, because the heart when its contracting, the muscle cells also use action potentials to initiate contraction.

我们讲心脏工作原理时,会回头再多讨论一点动作电位,因为心脏收缩时,肌肉细胞也利用动作电位来启动收缩

耶鲁公开课 - 生物医学工程探索课程节选

If any part of the chamber is not contracting, which may indicate an old myocardial infarction (a portion of the heart muscle is dead).

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