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硬石 yìngshístresses
gen. алмаз; адамант
el. крепкий известняк; крепкая порода; кровельный шифер
road.wrk. твёрдый камень
硬石矿物 yìngshí
tech. адамант
硬石: 120 phrases in 13 subjects
Construction3
Drilling5
Electronics9
General43
Geology16
Metallurgy3
Mining7
Oil / petroleum4
Oil and gas1
Oil processing plants3
Oilfields2
Silicate industry1
Technology23