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earthquake focus
bridg.constr. 地震源; 震源
desert. 地震震源
eng.geol. 震中
geophys. 地震震源点
earthquake focus
: 19 phrases in 7 subjects
Bridge construction1
Desert science1
Engineering geology4
Explosives and Explosive Ordnance Disposal1
Hydroelectric power stations2
Oil / petroleum1
Technology9