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科学时代收录了1160609条科普词条,基本涵盖了常见科普常识及英语词汇的翻译,是科学学习和研究的有利工具。

permanent radiation damage permanent rank permanent representative permanent representative permanent representative to the United Nations
permanent reserve forest permanent residence permanent resident permanent resident permanent resident alien status
permanent revolution permanent river permanent rotation permanent sample plot permanent service
permanent set permanent set permanent set permanent set permanent set
permanent snow line permanent sovereignty permanent staff permanent staff permanent staffing level
permanent standard cost permanent state forest permanent stock company permanent strain permanent strain
permanent supplementary artificial lighting permanent supplementary artificial lighting (PSAL) permanent surrender of quota permanent teacher permanent team
permanent thermocline permanent tissue permanent tooth permanent tooth permanent total disability
permanent total disability benefit permanent tracking station permanent transfer permanent transferee permanent treaty
permanent twist permanent varied flow permanent virtual circuit permanent virtual circuit--permanent virtual circuit (PVC) permanent virtual circuit (PVC)
permanent virtual circuit (PVC) permanent viscosity loss permanent waste disposal permanent waste storage permanent water
permanent water-table permanent wave permanent working paper permanent yellow permanganate
permansive aspect permeability permeability permeability permeability
permeability permeability permeability permeability permeability
permeability permeability permeability permeability permeability
permeability permeability alloy permeability coefficient permeability coefficient permeability coefficient
permeability measurement permeability number permeability tensor permeability test permeability tube
permeable permeable base transistor (PBT) permeable explosive permeable layer permeable membrane
permeable rock permeable seed permeameter permeameter permeameter
permeameter permeameter permeance permeance permease
permease permeate permeation permeation permeation
permeation constant permeation flow permeation pressure permeation rate Permendur alloy
per mensem per mensem permethrin permethrine Permian
Permian Permian period Permian Period Permian Period Permian Period
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