electric stimulator

例句：

1. 1. This device is used tostimulate the nerves in the brain.
   这个装置用于刺激大脑中的神经。
2. 2. The stimulator was designed to help people with paralysis regain their mobility.
   这个刺激器被设计用来帮助瘫痪患者恢复活动能力。
3. 3. Thestimulator has been shown to improveblood circulation and reduce pain.
   研究表明，这种刺激器可以改善血液循环并减轻疼痛。