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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。

natural product natural product natural product natural product natural profile
natural prolongation natural prolongation principle natural propagation natural property of mankind natural proportion
natural protected area natural pruning natural purification natural purification natural purification
natural quartz natural radiation natural radiation belt natural radioactivity natural radioactivity
natural radioactivity natural radio background natural rain natural range natural rate of growth
natural rate of interest natural rate of interest natural rate of output natural rate of unemployment natural rate of unemployment
natural rate of unemployment natural reference frame natural reference system natural regeneration natural regeneration by clearcutting method
natural regeneration by group seed tree method natural regeneration by marginal seeding natural regeneration by scattered seed tree method natural regeneration by seeds natural regeneration by shoots
natural region natural regulated river natural religion natural remanence natural remanent magnetization
natural remanent magnetization--natural remanent magnetization (NRM) natural remanent magnetization (NRM) natural rent natural reseeding natural reservation
natural reserve natural reserve area natural reservoir natural resin natural resin
natural resistance natural resonance natural resource natural resource management system natural resource protection area
natural resources natural resources natural resources natural resources natural resources
natural resources natural resources natural response natural right natural right
natural right natural right natural river natural rock natural rubber
natural rubber natural rubber latex natural safari park natural sand natural satellite
natural scenery Natural School natural school of law natural science natural science
natural science natural science natural science psychology natural sciences natural scour
natural seasonal phenomena natural seasoned timber natural seasoning natural secondary forest natural seed
natural seeding natural seeding natural seeding natural seedling natural seedling
natural seeing natural selection natural selection natural selection natural selection
natural selection natural selection natural selection natural selection natural selection
natural selection natural selection natural selection natural selection hypothesis natural selection model
natural servitude natural setting natural setting natural shot natural shot
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