所有科技知识-科学时代

科学时代收录了3405121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 pattern	natural pebble	natural period	natural period band	natural period of vibration
natural person	natural person certificate	natural philosophy	natural pigment	natural plants
natural polarization direction	natural pollination	natural pollution source	natural polymer	natural population
natural Portland cement	natural pour point depressant	natural power	natural pozzolan	natural precession
natural process	natural process limit	Natural product	natural product	natural products
natural projection	natural proportional limit	natural protein	natural protein fibre	natural punishment
natural purification	natural quartz	natural radiation	natural radiation exposure	natural radiation source
natural radioactive	natural radioactive decay	natural radioactive element	natural radioactive isotope	natural radioactive material
natural radioactive nuclide	natural radioactivity	natural radioactivity background	natural radioelement	natural radioisotope
natural radionuclide	natural radionuclides	natural rate of change	natural recharge volume	natural recirculation boiling reactor
natural rectifier	natural redundancy	natural reef	natural refrigerant	natural refrigerants
natural regeneration	natural regeneration; natural reporduc-tion	natural regulation	natural remanent magnetism	natural remanent magnetism (NRM)
natural remanent magnetization (NRM)	natural repose angle of sand	natural representation	natural reserve	natural resin
natural resins	natural resistance	natural resonance	natural resource	natural resource rights
natural resources	Natural resources	Natural Resources Defence Council{=NRDC}	Natural Resources System	natural resources system
Naturalrestitution	NATURAL RHYTHMIC EXPRESSION	natural right	natural rights	natural rock mass
natural rolling	natural rubber	natural sample PAM	natural sampling	natural sanctuary
natural sand	natural satellite	natural scale	natural scene	natural science
natural scouring	natural seasonal phenomena	natural seasoning	natural sedimentation	natural seeding
natural selection	natural selection and radiation	natural selection theory	natural self-purification capacity	natural series
natural serum (normal serum)	natural seventh	natural shoulder	natural shrinking	natural silica sand
natural silk	natural sine	natural siphon raingauge	natural sliced stone pavement	natural slope
natural soda	natural soda; trona	natural soil	natural sound	natural spice
natural spline function	natural stability	natural standard	natural starch	natural steam power plant
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