man suffering from oxide fumes treated by paramedics, an ambulance driving in a suburban area, safety film showing suburban accident scenarios... - 氧化物 個影片檔及 b 捲影像00:24開車
animation of a freeze frame picture of a jockey riding a horse explaining the photoelectric emission with a cesium oxide coating, usa, 1953. a... - 氧化物 個影片檔及 b 捲影像00:11
signs of water damage wooden cornice and roof gutter caused by humidity. moisture fungus. - 氧化物 個影片檔及 b 捲影像00:12
ecology: barry commoner's viewpoint - part 26 of 33. this unique introduction to the study of ecology features one of america's most outspoken biologists. dr. barry commoner explains technology's threat to the environment by describing four principles of - 氧化物 個影片檔及 b 捲影像00:33
the yttrium oxide production line at a factory of china rare earth group on march 30, 2022 in fusui county, chongzuo city, guangxi zhuang autonomous... - 氧化物 個影片檔及 b 捲影像00:13
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - 氧化物 個影片檔及 b 捲影像00:25
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - 氧化物 個影片檔及 b 捲影像00:34
cutting sodium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of sodium oxide and hydroxide - 氧化物 個影片檔及 b 捲影像03:10
cutting potassium metal with a scalpel. the shiny exposed metal surface reacts rapidly with oxygen and water in the air, forming a duller layer of potassium oxide and hydroxide - 氧化物 個影片檔及 b 捲影像00:55
smoke is released from birmingham library to represent nitrogen oxides saved by the clean air zone launched today in the city. the birmingham clean... - 氧化物 個影片檔及 b 捲影像03:25
plant under construction in northeastern japan to produce plutonium-uranium mixed oxide fuel, a major component of the country's stalled nuclear fuel... - 氧化物 個影片檔及 b 捲影像01:32
consumer and environmental activist ralph nader lists the five major pollutants that automobiles produce. - 氧化物 個影片檔及 b 捲影像00:13
clean up after illegal rave in white city; england: london: hammersmith: white city:extnotice about the dangers of covid-19 coronavirus being put up... - 氧化物 個影片檔及 b 捲影像03:53垃圾, 犯罪
brixton illegal street party: angell town estate gvs; england: london: brixton: angell towen estate: extblocks of flats on the angell town estate,... - 氧化物 個影片檔及 b 捲影像01:51
london's ultra low emission zone to come into force next week; uk, london; road signs for the ultra low emission zone , alex williams interview,... - 氧化物 個影片檔及 b 捲影像01:20
demonstrators on december 15 protested outside the sterigenics headquarters — demanding the company shut down after elevated levels of ethylene... - 氧化物 個影片檔及 b 捲影像01:26
demonstrators on december 15 protested outside the sterigenics headquarters — demanding the company shut down after elevated levels of ethylene... - 氧化物 個影片檔及 b 捲影像01:42
demonstrators on december 15 protested outside the sterigenics headquarters — demanding the company shut down after elevated levels of ethylene... - 氧化物 個影片檔及 b 捲影像01:35
