当前素材是由九二图网为您提供的“Chemical laboratory studies”作品,素材编号:20121022022826,尺寸为:3744×5616 像素,大小为:1.8MB,素材关键词要素为:Scientific research, chemical experiments, medical experiments, medicine, medical science, containers, pinnacles,scientific research,Modern Technology,Stock Images,欢迎下载收藏!