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sealing channeling by bullheading
挤入法封窜
在压力允许的范围内,将水泥浆通过封窜管柱挤入井内充满所有窜槽部位,使窜通层充分吸附水泥浆,以达到封窜目的的方法。
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proper sigma-ideal
proper similarity
proper solution
proper space
proper sphere
proper spiral point
proper star
proper subalgebra
proper subcategory
proper subclass
proper subcontinuum
proper subfield
proper subgraph
proper subgroup
proper submodule
proper subobject
proper subset
proper subspace
proper subsystem
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proper suffix
proper superset
proper surface
proper surface of second order
proper system
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