I thought isolating this image might be useful...!
(EDIT: reupload to try to fix an issue with rendering...) 化學項目 burner、chemicals、chemistry、flame、flask、Icon Infographic、remix+289260、school、science、test+tubes 燃燒器、化學製品、化學、火焰、燒瓶、圖標信息圖表、混音+ 289260、學校、科學、測試+管 資料來源:openclipart ( https://openclipart.org/ )