young scientists doing research in nature taking sample of water from a river - 科學樣本 個照片及圖片檔科學家, 檢查, 黑人種族
young scientists doing research in nature taking sample of water from a river - 科學樣本 個照片及圖片檔大自然, 室外, 專業職位
scientist working in laboratory for visual analyze the sample in petri dish. - 科學樣本 個照片及圖片檔科學家, 實驗室, 培養皿
shot of a senior scientist using a digital tablet while working with samples in a lab - 科學樣本 個照片及圖片檔科學家
ecologist on fieldwork. forester examines trees in their natural condition in the forest and taking samples for in-depth research. ecosystem care and sustainability. - 科學樣本 個照片及圖片檔森林, 檢查
close up water quality control staff and sciene wearing ppe working sample water and analyze the quality, industrial and environment - 科學樣本 個照片及圖片檔健康的生活方式, 工作, 職業
close-up of a female scientist looking through a microscope in a laboratory. a biologist or pathologist analyzing a sample to find a medical breakthrough. - 科學樣本 個照片及圖片檔顯微鏡, 實驗室, 細胞
young laboratory researcher in white coat conducting scientific analysis with precision equipment - 科學樣本 個照片及圖片檔實驗室, 科學家
soil scientist working with soil sampling and measuring ,collecting and analysis data at the agriculture field. - 科學樣本 個照片及圖片檔泥土, 農夫
scientist pipetting a sample into a petri dish during a experiment in the laboratory - 科學樣本 個照片及圖片檔實驗室, 培養皿, 生物科技學
Twelve gram piece of the moon sent to Brookhaven National Laboratory for inspection, Uptown, New York, 1959. Image courtesy US Department of Energy. .月亮
mid adult female lab worker in white coat packaging products in modern laboratory setting - 科學樣本 個照片及圖片檔生產線, 科學家, 工作