noun 다운로드 🔗공유 나노 입자 Any microscopic particle less than about 100 nanometers (nm) in diameter. In aerosol science, the term is often reserved for particles less than 50 nm in diameter; the term "ultrafine particles" is used for particles less than 100 nm in diameter. Examples : "Sunscreen contains nanoparticles that help protect your skin from the sun's harmful rays. " 자외선 차단제에는 피부를 태양의 유해한 광선으로부터 보호하는 데 도움이 되는 나노 입자가 포함되어 있습니다. material science technology physics chemistry environment AI와 채팅어휘 게임독해 연습
