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氢氧 qīngyǎngstresses
gen. гидроокись; гидроксид
氢氧: 363 phrases in 27 subjects
Astronautics2
Chemistry52
Construction1
Drug-related slang1
Ecology1
Electronics36
Firefighting and fire-control systems1
Food industry3
Food service and catering3
General82
Geochemistry2
Geology1
Inorganic chemistry1
Medical34
Metallurgy2
Military1
Missiles2
Nautical2
Oil / petroleum2
Oil and gas1
Oil processing plants20
Scuba diving1
Silicate industry1
Technology102
Textile industry1
Thermal engineering1
United Nations7