当前素材是由九二图网为您提供的“Scientific research equipment”作品，素材编号：20121022034126，尺寸为：3088×2056 像素，大小为：1.3MB，素材关键词要素为：Scientific research, chemical experiments, medical experiments, medicine, medical science, test tubes, drip tubes, scientific research, modern technology,scientific research,Modern Technology,Stock Images，欢迎下载收藏！