DictionaryForumContacts

   Chinese
Google | Forvo | +
to phrases
洁净空气
avia. clean air
eng.geol. uncontaminated air
洁净空气: 19 phrases in 10 subjects
Electronics2
Environment2
Exhibitions1
General1
Hydroelectric power stations1
Metallurgy1
Refrigeration4
Space1
Technology4
Wind Energy2