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种质资源野外调查
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种质资源野外调查
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germplasm resource field investigation
种质资源野外调查
通过对一定范围种质资源的实地考察,摸清该范围内种质资源的储量和利用情况的活动。
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homotopy dimension
homotopy epimorphism
homotopy equivalence
homotopy-equivalent
homotopy-equivalent manifold
homotopy-equivalent space
homotopy exact sequence
homotopy excision
homotopy excision homomorphism
homotopy excision theorem
homotopy extension
homotopy extension property
homotopy extension theorem
homotopy fiber
homotopy functor
homotopy group
homotopy group functor
homotopy group of a triad
homotopy group of CW complexes
homotopy group of spheres
homotopy identity
homotopy invariance
homotopy invariant
homotopy invariant functor
homotopy inverse
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