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夕阳产业
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sunset industry
夕阳产业
随着技术创新、新产品的替代或需求变化,产品趋于同质性,竞争激烈,市场饱和,连续创新趋于枯竭,产业收益率低于其他产业平均值且呈下降趋势,但在分工体系中已经取得较为稳定地位的产业。是对趋向衰落的传统工业部门的一种形象称呼,是朝阳产业的对称。又称衰退产业。
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nuclear quadrupole resonance (NQR)
nuclear quadrupole resonance, NQR
nuclear radiation
nuclear radiation at early stage
nuclear radiation detection
nuclear radiation detector
nuclear radiation effect
nuclear radiation interaction with matter
nuclear radiation level meter
nuclear radiation measuring spectrometer
nuclear radiation medical protection of ship
nuclear radiation method
nuclear-radiation transducer
nuclear radius
nuclear reaction
nuclear reaction analysis
nuclear reaction cross-section
nuclear reaction dynamics
nuclear reaction kinematics
nuclear reaction net
nuclear reaction rate
nuclear reaction threshold
nuclear reactor
nuclear receptor
nuclear recoil energy
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