气体扩散 Traditional 氣體擴散 qì tǐ kuò sàn 🔊 gaseous diffusion + Keep this word Meanings qì tǐ kuò sàn 氣體擴散 gaseous diffusion Its characters 气qìgas; airHSK 4体tǐbody扩kuòto enlargeHSK 7–9散sànto scatterHSK 6