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铁结核
soil. iron concretion; iron incrustation
铁结核{土壤}
agric. iron concretion
结核
eng.geol. iron concretion
铁结核: 43 phrases in 9 subjects
Agriculture3
Desert science9
Earth sciences4
Engineering geology3
General5
Geology1
Metallurgy1
Oil / petroleum4
Technology13