DictionaryForumContacts

   Chinese
Google | Forvo | +
to phrases
本底放射性 běndǐ fàngshèxìng
oil background radioactivity
wind. background activity
本底放射性: 16 phrases in 11 subjects
Chemistry1
Desert science1
Earth sciences2
Electronics2
General1
Geophysics1
Metallurgy1
Nuclear physics1
Oil / petroleum2
Sports1
Technology3