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不成平衡
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不成平衡
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no equilibrium
不成平衡
放射性核素在衰变过程中,当母体核素半衰期很短,且小于子体核素的半衰期,母、子体的放射性活度之比一直在变化而不存在任何放射性平衡的状态。
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cohomology algebra
cohomology class
cohomology diagram
cohomology dimension
cohomology dimension of groups
cohomology exact sequence
cohomology extension
cohomology functor
cohomology group
cohomology group of a group
cohomology homomorphism
cohomology manifold
cohomology mapping
cohomology module
cohomology object
cohomology obstruction
cohomology of a bundle
cohomology of a classifying space
cohomology of a coherent sheaf
cohomology of a commutative algebra
cohomology of a commutative ring
cohomology of a complex
cohomology of a fiber bundle
cohomology of a finite group
cohomology of a group
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