It can make accurate nerve localization, guide the block needle to the target nerves, observe local anesthetic spread.
此法可以做到精确的神经定位，引导穿刺针到达目标神经，观察局麻药的扩散情况。
It can make accurate nerve localization, guide the block needle to the target nerves, observe local anesthetic spread.
此法可以做到精确的神经定位，引导穿刺针到达目标神经，观察局麻药的扩散情况。
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