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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 emission neutron activation detector primary employment primary employment primary endosperm nucleus primary energy source
primary entry primary environment primary environment primary essence primary excitation
primary explosive primary exporting primary exporting primary exporting country primary exposure
primary family primary family primary family primary family unit primary family unit
primary fermentation primary fermentation primary fire [firing] position primary fission product primary fission yield
primary fissure primary flash primary flight control system primary flight display primary float feed
primary flotation primary flow field primary focus primary follicle primary forest
primary forest primary forest primary gas-filling station primary geochemical anomaly primary goods
primary goods primary goods primary goods primary grades primary grain
primary graph primary graphic element primary graphic element primary graphite primary group
primary group primary group primary growth primary growth primary gun
primary hard disk primary heating system primary heat transport system primary high explosive primary highway
primary homothallism primary host tree primary image primary imagination primary immune organ
primary immune response primary immune response primary impression primary improvement primary income
primary induction primary industry primary industry primary industry primary industry
primary industry primary industry primary infection primary infection primary information
primary input primary insect primary institution primary institution primary instruction
primary insurance primary insurance primary insurer primary ionization primary ionizing event
primary issue primary jet zone primary joint primary juice primary key
primary key primary kin primary labour market primary labour market primary land market
primary language primary language instruction primary leaf primary lease primary lease market
primary lesion primary level primary levelling primary liability primary liability
primary linguistic data primary listing primary load primary loss primary lymphatic organ
primary lymphoid nodule primary lysosome primary lysosome primary lysosome primary magnetization
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