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National Board | of
 of
gen. ; …的; 关于 …的; …做成 的; 对…; … 的
| Science and Technology
 science and technology
bridg.constr. 科技
el. 科学 技术
space 科学与技术

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National Board

USA NB
National Board
: 124 phrases in 32 subjects
Advertising2
Animal husbandry2
Architecture2
Automobiles2
Aviation10
British usage, not spelling1
Business2
Commerce2
Computer networks1
Earth sciences26
Economics8
Electronics4
Environment1
Forestry1
General13
Geology2
Geophysics1
Insurance1
International trade1
Labor law1
Law9
Name of organization4
Navigation1
Oil / petroleum7
Refrigeration1
Shipbuilding1
Space4
Sports1
Technology8
United Kingdom1
United States3
Wind Energy1

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