female scientist testing medical marijuana. charts and models on computer screens. modern laboratory interior - 科學實驗 事件 個照片及圖片檔癌症, 實驗室
patient sleeping in a medical clinic doing polysomnography (sleep study) - 科學實驗 事件 個照片及圖片檔睡覺, 體檢, 睡眠呼吸中止症
aerial view of two environmental engineers work at wastewater treatment plants, water management concept. - 科學實驗 事件 個照片及圖片檔污水處理廠, 工程師, 建築物
blood research,scientist hand holding test tube with blood in laboratory. - 科學實驗 事件 個照片及圖片檔癌症, 驗血, 體檢
biologists and wastewater treatment experts conduct water quality simulation experiments. at the wastewater treatment plant - 科學實驗 事件 個照片及圖片檔污水處理廠, 檢查
criminologists in protective suits with camera taking photos of physical evidence in a flashlight light - 科學實驗 事件 個照片及圖片檔犯罪, 犯罪現場, 警察
young female scientist filling chemical through pipette while working in laboratory - 科學實驗 事件 個照片及圖片檔實驗室, 科學家, 醫學研究
mature female virologist wearing eyeglasses experimenting in laboratory - 科學實驗 事件 個照片及圖片檔科學家, 實驗室, 醫學研究
researcher at work in dna genetic laboratory: virus and pathogen detection - 科學實驗 事件 個照片及圖片檔實驗室, 檢查, 注射疫苗
research, results and tests being done by doctors in a lab while working on computers together. medical researchers collaborating and researching to find a cure for disease and illness at work - 科學實驗 事件 個照片及圖片檔實驗室, 背景 - 主題, 醫院
female scientists wearing chemical protective suites and ppe collect samples of toxic water to test by mobile lab test, examining wastewater from industrial, and environment - 科學實驗 事件 個照片及圖片檔化學品, 污染, 檢查
