of, relating to, or involving a telephonograph.
| 单词 | θ198014 |
| 释义 | society > communication > telecommunication > telegraphy or telephony > telephony > telephone equipment > [adjective] > types of telephone (4) telephonographic1889 of, relating to, or involving a telephonograph. rotary1910 Designating a telephone dial with a circular disc which is rotated by means of numbered finger-holes. Also: designating a telephone with such a dial. automatic1934 Telecommunications. Of a telephone exchange or system: operated by automatic switches and relays, without human involvement (now historical)… hands-free1955 Designating a telephone or other device which can be operated without using the hands; designating an activity or function facilitated by such a… |
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