<p>➀ Researchers from Qingdao University of Technology developed ultrasonic vibration-assisted nanoparticle jet mist冷却 (U-NJMC), integrating nanofluid sprays and ultrasonic vibrations to reduce heat and resistance during bone grinding;</p><p>➁ The technique demonstrated superior performance in lowering grinding force, temperature, and energy compared to existing methods, enhancing surgical precision and safety;</p><p>➂ U-NJMC's innovative cooling approach provides a promising solution for improving efficiency and outcomes in orthopedic procedures.</p>