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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。

secondary cremation secondary crusher secondary crusher secondary crushing secondary crushing
secondary crystal secondary crystal secondary culture secondary culture centre secondary curing
secondary current secondary current distribution secondary cycle basin secondary damage secondary data
secondary data secondary data secondary data secondary data secondary data research
secondary data use secondary decomposition secondary defect secondary delusion secondary derivative
secondary deviance secondary device secondary diffusion secondary dike secondary dislocation
secondary dispersion secondary distribution secondary distribution secondary document secondary dominant
secondary drilling secondary drive secondary earthquake secondary edition secondary education
secondary education Secondary Education Act secondary education for adults secondary effect secondary effect
secondary effluent secondary electrical power source secondary electron secondary electron secondary electron
secondary electron emission secondary electron emission coefficient secondary electron emitting material secondary electron multiplier secondary emission
secondary emission secondary emission secondary emission electron secondary emission multiplier secondary emission ratio
secondary employment secondary ending secondary environment secondary environment secondary environment
secondary environment secondary environmental secondary evidence secondary explosion secondary extinction
secondary family secondary feature secondary feature secondary fermentation secondary filter
secondary filter secondary financing secondary fission secondary fission ratio secondary fissure
secondary flash tank secondary float feed secondary flotation secondary flow secondary flow
secondary flow pattern secondary focal point secondary focus secondary focus secondary forest
secondary forest secondary function secondary gamma ray secondary gamma ray yield secondary gas-filling station
secondary geochemical anomaly secondary geosyncline secondary gill arch secondary girder secondary gleyization
secondary grain secondary graphite secondary group secondary group secondary group
secondary group secondary group secondary growth secondary-hand experience secondary hard disk
secondary hardening secondary hardness secondary heat exchanger secondary hematite secondary highway
secondary host secondary hyperparathyroidism secondary imagination secondary immune organ secondary immune response
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