digital illustration of showing shape and volume of solid gas, and liquid gas taking shape of conica - 錐形燒瓶 幅插畫檔、美工圖案、卡通及圖標液體, 氣體
laboratory and research doodle set, circular composition with lab girl in the center - 錐形燒瓶 幅插畫檔、美工圖案、卡通及圖標兒童, 圖畫 - 藝術品, 研究