“功能的”用英语怎么说？

某些化学成分失衡会道致大脑功能的紊乱.An imbalance in certain chemicals leads to disturbances in the brain's function.平直的脑电图表明脑部功能的丧失.A flat electroencephalogram indicates a loss of brain function.还配有轮缘部分具有减震功能的新型方向盘，以在受到严重撞击时保护司机的头部。...