Set of hand drawn science and education elements. Vector illustration in sketch style.

Knowledge and web education sketch design with light bulb plugged into a tall stack of books. Surrounded by flasks, DNA, hourglass, gears, ruler, atom and pencil

知識和網絡教育的草圖設計，燈泡插入的書籍疊高。由瓶，DNA，沙漏，齒輪，直尺，原子和鉛筆環繞

知識和網絡教育的草圖設計，燈泡插入的書籍疊高。由瓶，dna，沙漏，齒輪，直尺，原子和鉛筆環繞

知識和網絡教育的草圖設計，燈泡插入的書籍疊高。由瓶，DNA，沙漏，齒輪，直尺，原子和鉛筆環繞 剪貼畫、和美工 Image 50899969.

123RF 圖庫 - 數百萬張高創意商用圖片、向量分層素材、影像短片和音樂特效以滿足你每天的靈感創作！

https://previews.123rf.com/images/seamartini/seamartini1601/seamartini160100220/50899969-知識和網絡教育的草圖設計，燈泡插入的書籍疊高。由瓶，dna，沙漏，齒輪，直尺，原子和鉛筆環繞.jpg