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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。

primary cerebral vesicle primary characteristic primary charge primary circulating system primary circulation
primary clarification primary classification primary classification primary climax primary clock
primary coast primary coelom primary coil primary colony primary colour
primary colour primary colour primary colour primary colour primary colour
primary colour primary colour primary colour primary combustion zone primary commodity
primary commodity primary commodity primary community primary community primary compilation
primary component primary component primary compound primary consolidation primary constriction
primary constriction primary constriction primary consumer primary context primary contract
primary contract primary control primary conversion primary conveyance primary coolant
primary coolant circuit primary coolant pump primary cooler primary cooling primary cooling
primary cooling system primary cooling water primary cortex primary cosmic radiation primary cosmic ray
primary cover primary creep primary creep primary creep primary creep
primary crusher primary crusher primary crushing primary crystal primary crystal
primary culture primary culture primary culture primary data primary data
primary data primary data primary data primary data primary data
primary data primary dealer primary debt primary decomposition primary defensive position
primary deficit primary demand primary demand primary demand advertising primary demand deposit
primary demand trend primary demineralization system primary dependent primary derivative primary deviance
primary diffusion primary dislocation primary dispersion primary distillation primary distribution
primary distribution primary distribution primary domain controller (PDC) primary domain name server primary dose monitoring system
primary drinking primary drying roller primary earnings per share primary earnings per share primary earthquake
primary education primary education primary education Primary Education Act primary education district
primary effect primary egg envelope primary election primary election primary election
primary electrical power source primary electron primary element primary embryo cell primary emission
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