Environment protection is one of the hot topics today. Global warming,glaciers melting,rising of sea-levels and species extinction have aroused high concern of the world.People's living environment is being ruined...Environment protection is one of the hot topics today. Global warming,glaciers melting,rising of sea-levels and species extinction have aroused high concern of the world.People's living environment is being ruined severely at a surprising speed.How to take effective measures to protect our environment and recover the destroyed environment is a key issue to be discussed.Loving and preserving the earth is the responsibility of all human beings.展开更多
Ⅳ' Development trend of phosphors and proposals 1' Development trend of phosphors From the new developing trend of phosphors for lamps at home and abroad,it is necessary to improve the luminescent efficiency,...Ⅳ' Development trend of phosphors and proposals 1' Development trend of phosphors From the new developing trend of phosphors for lamps at home and abroad,it is necessary to improve the luminescent efficiency,color rendering,luminous flux maintenance and secondary characteristics of rare earth phosphors and keep consistence of those properties.Research,development,production and application of rare earth phosphors for lamps should not be limited to trichromatic phosphors but be ex-展开更多
文摘Environment protection is one of the hot topics today. Global warming,glaciers melting,rising of sea-levels and species extinction have aroused high concern of the world.People's living environment is being ruined severely at a surprising speed.How to take effective measures to protect our environment and recover the destroyed environment is a key issue to be discussed.Loving and preserving the earth is the responsibility of all human beings.
文摘Ⅳ' Development trend of phosphors and proposals 1' Development trend of phosphors From the new developing trend of phosphors for lamps at home and abroad,it is necessary to improve the luminescent efficiency,color rendering,luminous flux maintenance and secondary characteristics of rare earth phosphors and keep consistence of those properties.Research,development,production and application of rare earth phosphors for lamps should not be limited to trichromatic phosphors but be ex-