DictionaryForumContacts

   English
Google | Forvo | +
to phrases
free nitrogen
agric. 游离氮
oil 单体氮
free nitrogen
: 29 phrases in 15 subjects
Agriculture5
Animal husbandry6
Chemistry2
Desert science1
Earth sciences1
Ecology1
Food service and catering2
Geology1
Metallurgy3
Microbiology2
Oil processing plants1
Polymers1
Space1
Technology1
Water resources1