所有科技知识-科学时代

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。

secondary picketing	secondary pipe	secondary ploughing	secondary pneumonia	secondary poisoning
secondary pollutant	secondary pollutant	secondary pollution	secondary polycythemia	secondary polycythemia--secondary polycyth（a）emia
secondary polycyth（a）emia	secondary power system	secondary pressure pulse	secondary prevention	secondary principal stress
secondary process	secondary product	secondary product	secondary production	secondary production
secondary production	secondary production	secondary productivity	secondary productivity	secondary professional school
secondary programme	secondary protection barrier	secondary protonema	secondary psychic system	secondary publication
secondary quality	secondary race	secondary radiat	secondary radiation	secondary radiation
secondary radiation	secondary radiation	secondary radiation	secondary radiation	secondary radiation effect
secondary radiator	secondary radioisotope	secondary rainbow	secondary raker	secondary ray
secondary reaction	secondary reaction	secondary reaction	secondary reader	secondary readership
secondary recovery	secondary reduction	secondary refining	secondary refrigerant	secondary refrigerant
secondary refrigerant medium	secondary regulating pond	secondary reinforcement	secondary reinforcement	secondary relation
secondary remanent magnetization	secondary rental	secondary reserves	secondary resistance	secondary resonance
secondary resonance	secondary response	secondary response	secondary return air system	secondary right
secondary road	secondary road	secondary rock pressure	secondary root	secondary rule
secondary school	secondary school teacher	secondary seal	secondary sector	secondary sector
secondary sector	secondary sedimentation tank	secondary segmentation	secondary series	secondary sex characteristic
secondary sex characteristics	secondary sex ratio	secondary sexual characteristic	secondary sexual characteristic	secondary sexual characteristics
secondary sexual trait	secondary shaping	secondary shield	secondary shielding	secondary shutdown system
secondary signal	secondary signature	secondary sludge	secondary sludge	secondary socialization
secondary sorbite	secondary source	secondary source	secondary source	secondary source
secondary source	secondary source of job information	secondary specialized education	secondary specialized school	secondary species
secondary species	secondary spectroscopic standard	secondary spectrum	secondary speech community	secondary spermatocyte
secondary spermatocyte	secondary stakeholder	secondary standard	secondary standard	secondary standard
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