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change whether inside or outside a building . however outside air in uk cities has been a cause for concern for many years. this concern has mainly centred around the high levels of traffic air pollution in the form of fine combustion particles (pm , pm . ) and the associated combustion gas nitrogen...
companies. gather intelligence for the preparation of reports, presentations and tenders that will win the company contracts in on going and upcoming projects. gather market and customer information and network with major players in the oil and gas industry and the decision makers and provide feedback...
recrdng of othr phenomena,othr thn prdcts of ch. trnsmisn aparats fr radio,telephny etc w/n incrprtng reception apprts/sound recording/reprdcng apprts;tv cameras radar apparatus, radio navigational aid apparatus and radio remote control apparatus reception apparatus for radio-broadcasting whether or not...
register radiation from a flame or heat. a smoke detector based on the interruption of light reception by a photo-electric cell, will only identify the shadow effect of dark smoke when it passes through its chamber. it will not identify unseen combustion products, heat or flame. heat sensors and rate...
register radiation from a flame or heat. a smoke detector based on the interruption of light reception by a photo-electric cell, will only identify the shadow effect of dark smoke when it passes through its chamber. it will not identify unseen combustion products, heat or flame. heat sensors and rate...
recrdng of othr phenomena,othr thn prdcts of ch. trnsmisn aparats fr radio,telephny etc w/n incrprtng reception apprts/sound recording/reprdcng apprts;tv cameras radar apparatus, radio navigational aid apparatus and radio remote control apparatus reception apparatus for radio-broadcasting whether or not...
register radiation from a flame or heat. a smoke detector based on the interruption of light reception by a photo-electric cell, will only identify the shadow effect of dark smoke when it passes through its chamber. it will not identify unseen combustion products, heat or flame. heat sensors and rate...
register radiation from a flame or heat. a smoke detector based on the interruption of light reception by a photo-electric cell, will only identify the shadow effect of dark smoke when it passes through its chamber. it will not identify unseen combustion products, heat or flame. heat sensors and rate...