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Life cycle concepts and theories,which are widely used in electronic products,machinery equipment,and especially military products,are introduced into the field of meteorological equipment technical support. Several concepts of meteorological equipment life, such as design life,physical life,economical life, technical life, and remaining useful life, are defined.The application of each life concept is preliminarily studied.Fully understanding of the different concepts of meteorological equipment life will help improve the maintenance, repair, renewal, and abandonment more scientifically.The concept of remaining useful life is especially important, and the prediction and application of it will promote the construction of modern maintenance and repair ideas.