ecologist collecting water samples in a forest stream for environmental research - 水樣本 個影片檔及 b 捲影像00:12
water samples for ph and chlorine levels. environment scientists sample wastewater in a test tube and drop chemicals to test the quality of water, industrial, and environment - 水樣本 個影片檔及 b 捲影像00:20污水
outdoor laboratory test quality of water at water treatment plant, close up water quality control staff and sciene sample water analyze the quality, industrial and environment - 水樣本 個影片檔及 b 捲影像00:18
environment scientists examining water and collecting water samples from industry,water analysis - 水樣本 個影片檔及 b 捲影像00:17
laboratory technician tests water samples in a laboratory at a sewage treatment plant on october 22, 2024 in dnipro, ukraine. the hostilities of... - 水樣本 個影片檔及 b 捲影像00:08
two male biologist testing the water in a local river.ecologists wearing casual clothing exploring lake and taking water sample. - 水樣本 個影片檔及 b 捲影像00:14
environmental scientists and biologist analyzing river water samples in the field with testing equipment. - 水樣本 個影片檔及 b 捲影像00:17
environment scientists sample wastewater in a test tube and drop chemicals to test the quality of water, industrial, and environment - 水樣本 個影片檔及 b 捲影像00:17
scientists collect water samples and inspect the discharge point from factories into the sea in an industrial area. - 水樣本 個影片檔及 b 捲影像00:12污水
environment scientists examining water and collecting water samples from industry, water analysis - 水樣本 個影片檔及 b 捲影像00:18
calls for urgent action over pharmaceuticals found in rivers in national parks; england: derbyshire: peak district: extriver wyereporter to... - 水樣本 個影片檔及 b 捲影像01:42
the scientists examining toxic water samples. the laboratory assistant takes a water analysis in a puddle on a ditch coast. a woman with glasses dressed in a white lab coat. ecological water sampling - 水樣本 個影片檔及 b 捲影像00:25
the scientists examining toxic water samples. the laboratory assistant takes a water analysis in a puddle on a ditch coast. a woman with glasses dressed in a white lab coat. ecological water sampling - 水樣本 個影片檔及 b 捲影像00:07
two male biologist testing the water in a local river.ecologists wearing casual clothing exploring lake and taking water sample. - 水樣本 個影片檔及 b 捲影像00:16
two male biologist testing the water in a local river.ecologists wearing casual clothing exploring lake and taking water sample. - 水樣本 個影片檔及 b 捲影像00:12
close up of hands pouring water sample in test tube / vineyard, utah, united states - 水樣本 個影片檔及 b 捲影像00:14
wide shot of park ranger collecting water sample from lake / vineyard, utah, united states - 水樣本 個影片檔及 b 捲影像00:31
ha ls tu two workers standing on central island of clarifier basin in water treatment plant, one takes a water sample and checks it, while the other makes notes on clipboard, red r3d 4k - 水樣本 個影片檔及 b 捲影像00:31
miner examining rock sample in underground mine with hard hat, safety glasses, work glove, red uniform, industrial worker applying geology knowledge during mining tunnel inspection and teamwork - 水樣本 個影片檔及 b 捲影像00:11
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:11
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:13
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:13
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:08
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:11
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:12
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:09
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:15
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:09
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:12
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:12
an environmental scientist and ecologists in yellow protective suits collect water samples to test pollution levels near industrial fuel storage tanks on a contaminated coastline - 水樣本 個影片檔及 b 捲影像00:12