库尔蒂纳表示，该研究小组迫切希望开始人体试验，但首先需要开发便于刺激患者脊椎中步行回路的植入式电极。

Courtine said the group is eager to begin human trials, but first needs to develop implantable electrodes to stimulate the walking circuits in patients' spines.

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这样做的一种方法就是使用开放式回路。

One way to do this is to use open loops .

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反激式开关变压器和反馈控制回路设计，以及考虑电磁兼容性对电路的改进，是其关键技术。

The design of flyback switching transformer and feedback control loop and the improvement of the circuit for considering electromagnetic compatibility are the critical technologies.

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