adjective🔗Share超细，极细。 (of particles) Very fine"The air purifier helps remove ultrafine dust particles from the room, making it healthier to breathe. "这款空气净化器有助于去除房间里的超细灰尘颗粒，让呼吸更健康。materialsciencetechnologyChat with AIVocabulary GamePractice Reading
