DictionaryForumContacts

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to phrases
central office
tel. 交換局 (kōkankyoku)
n central office | n
gen. 電話交換局 (denwa-kōkankyoku)
 English thesaurus
Central Office
IT, abbr. CO (Telephony)
Central Office telecommunications/telephony
abbr. CO (Alex Lilo)
central: 3 phrases in 3 subjects
General1
Microsoft1
Name of organization1