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nature reserve patrol
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nature reserve patrol
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风景名胜区
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nature reserve patrol
自然保护区巡护
沿着一定的路线观察,按要求记录下野生动植物及人类活动情况,并及时将所发现的重要情况上报,及时采取行动制止非法行为的活动。
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homotopy-commutative diagram
homotopy-commutative mapping
homotopy constant
homotopy continuation method
homotopy covering property
homotopy cylinder
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
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