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集中于
gen.	bend; funnel
busin.	centering
econ.	center; centre
met.	focus
集中于.....
dril.	converge
集中〔专心，致力〕于
gen.	concentrate on
集中于〔在〕
gen.	funnel into; funnel onto
集中〔专心，致力〕于
math.	concentrate upon
集中注意力; 精力等于
gen.	focus
集中于一点
gen.	converge

集中于: 21 phrases in 10 subjects

Bridge construction	2
Business	1
Chess	1
Drilling	2
Economy	1
Explosives and Explosive Ordnance Disposal	1
General	8
International trade	1
Securities	2
Technology	2