manual switchboard造句
例句與造句
- The Avalon telephone directory in 1920 listed 52 subscribers serviced by a manual switchboard.
- Strangely, it was decided to continue with manual switchboards.
- The telephone system is still operated by its original old manual switchboard, which was manufactured by Siemens.
- He owns the Riverview Hotel, where Bailey's Camden Telephone Co . started business with a manual switchboard.
- The terms originate in reference to the telephone plugs used for connecting telephone calls in manual switchboards.
- It's difficult to find manual switchboard in a sentence. 用manual switchboard造句挺難的
- By 1904 over three million phones in the U . S . were connected by manual switchboard exchanges.
- An early form called quaternary pulses to set up calls between a panel switch and a manual switchboard.
- Instead, they took the highly unusual step of adding a dial and trunk lines to every manual switchboard position.
- Established by his family in 1927, Camden Telephone began as a manual switchboard and grew to be Camden County's primary carrier.
- The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges around the world.
- A small mom and pop company might have had the husband doing the outside lines work and the wife operating a manual switchboard.
- The museum also contains the analogue telephone exchanges ( one of them a mobile TXE2 ), a manual switchboard and early automatic systems.
- Catalina's isolation also left the island as the last central office in the US Bell System to operate entirely using manual switchboard operators.
- Collarenebri was among the last places in Australia to be converted from a manual switchboard to an automatic telephone exchange ( in 1986 ).
- In areas with mostly machine switches and a few manual switchboards, Panel Call Indicator ( PCI ) signaling lit lamps on the B operator's desk at the terminating manual office.
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