“direct distance dialing”的概念、定义、翻译、参考文献-科学参考

单词	direct distance dialing
释义	direct distance dialing [dǝ¦rekt ¦dis·tǝns `dīl·iŋ] ^{COMMUNICATIONS} A telephone exchange service that allows a telephone user to dial subscribers outside the local area using a standard routing pattern from the local or end office.
随便看	demand system demand writing demantoid demarcation potential De Marre formula demasking Dematiaceae Dember effect Dembowska deme dementia dementia praecox dementia simplex demersal demethanation demethanator demethanization demethylation demethylchlortetracycline demeton-S-methyl demeton-S-methyl sulfoxide demilune demineralization demister demister blanket

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