cropped hand of female student pouring liquid solution in flask from bottle at laboratory - 錐形燒瓶 個照片及圖片檔
midsection of young female student pouring solution in flask by teacher at chemistry laboratory - 錐形燒瓶 個照片及圖片檔
midsection of young male student pouring liquid solution in flask on table at laboratory - 錐形燒瓶 個照片及圖片檔實驗室, 工程師, 歐洲
smiling young male students mixing solutions in glassware at chemistry laboratory - 錐形燒瓶 個照片及圖片檔大學學生, 實驗室
cropped hand of male student holding solution in conical flask by friend at chemistry laboratory - 錐形燒瓶 個照片及圖片檔
high angle view of smiling multi-ethnic students mixing solutions and writing in spiral notepad at chemistry laboratory - 錐形燒瓶 個照片及圖片檔實驗室, 微笑
young multi-ethnic chemistry students mixing solutions at laboratory in university - 錐形燒瓶 個照片及圖片檔教師, 瑞典
smiling young multi-ethnic chemistry students with solutions at laboratory in university - 錐形燒瓶 個照片及圖片檔微笑, 實驗室, 課室
cropped image of multi-ethnic students mixing solutions at chemistry laboratory in university - 錐形燒瓶 個照片及圖片檔
Arkopharma lab in Nice, France, pharmaceutical lab specialized in the phytotherapy, natural medicine and dietary supplement sectors. At the lab:...黃薑
Arkopharma lab in Nice, France, pharmaceutical lab specialized in the phytotherapy, natural medicine and dietary supplement sectors. At the lab:...製藥業, 黃薑, 實驗室
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、卡通及圖標氣體
