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secondary source

adv. 次要数据来源
econ. 次级来源; 第二手来源
el. 二次中子
libr. 二次文献; 二手资料
market. 二手来源
nucl.phys. 次级源
tech. 二次光源
secondary source
: 21 phrases in 10 subjects
Advertising2
Aviation2
Commerce1
Ecology1
Electronics3
Explosives and Explosive Ordnance Disposal2
Nuclear and fusion power2
Rail transport1
Space2
Technology5

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