switchhook造句

例句与造句

1. A telephone exchange automatically senses an off-hook condition of the telephone when the user removes the handset from the switchhook or cradle.
2. When the called party answers by taking the telephone handset off the switchhook, the subscriber's telephone draws direct current from the central office battery.
3. Not only did they not reliably hold down the tiny micro-switch, which now served as the switchhook, but users did not like the feel of them.
4. The housing sat on top of the base, secured with screws, and contained the rotary dial and the switchhook, which was activated by two plungers in the handset cradle.
5. When the called party picks up the handset, they actuate a double-circuit switchhook ( not shown ) which may simultaneously disconnects the alerting device and connects the audio circuitry to the line.
6. It's difficult to find switchhook in a sentence. 用switchhook造句挺难的
7. The PBX had the important feature that someone who received a call in error could jiggle the switchhook, causing a light to flash to recall the operator to connect the caller to the desired extension.
8. When not in use, the receiver hung on a hook with a switch in it, known as a " switchhook . " Previous telephones required the user to operate a separate switch to connect either the voice or the bell.
9. A calling party wishing to speak to another party will pick up the telephone's handset, thereby operating a lever which closes the switchhook ( A4 ), which powers the telephone by connecting the transmitter ( microphone ), receiver ( speaker ), and related audio components to the line.
10. But two numbers were left out of the exchange code : 0, so it could be used for reaching an operator with a single pull of the dial, and 1, because switches of the time had trouble distinguishing a dialed 1 at the beginning of a number from the click of a switchhook being depressed.