Noun:

বার্তা নল,

speaking tube's Usage Examples:

A speaking tube or voicepipe is a device based on two cones connected by an air pipe through which speech can be transmitted over an extended distance.

set of tools, two acetylene headlights, two additional oil lamps, a speaking tube for communicating with the driver, perfumery bottles, ashtray and silk.

transmission line (TL) related technologies include the (mostly obsolete) speaking tube, which transmitted sound to a different location with minimal loss and.

dumbwaiter's "speaking tube" that there is no food.

Gus leaves the room to get a drink of water in the bathroom, and the dumbwaiter's speaking tube whistles.

At the side entrance is a speaking tube through which patients could talk with Dr.

Finally there was speaking tube communication between the driver and fireman - although there is evidence.

partially enclosed), and often had little equipment—usually just a speaking tube or telephone to allow communication with the helmsman or wheelman on.

reflected off the surface of a very thin mirror positioned at the end of a speaking tube; as words were spoken they cause the mirror to oscillate between convex.

The mill is unusual in having a speaking tube connecting the floors.

One example might be a speaking tube used aboard ships for communication between decks.

A luggage lift and speaking tube served all three floors.

the acoustics, which were transmitted to the back of the throne via a speaking tube, and into the king's ear.

A speaking tube was provided to allow the passengers to communicate with the pilot.

Gosport tube, a speaking tube used in early aviation for communication between seats of open-air aircraft.

6 m/s) Communications were done by the instructor through a speaking tube to the student in the front cockpit.

communication with the engine room from both ends of the bridge, a speaking tube in the center and a third telegraph at the Captain's look-out house.

Synonyms:

tubing; tube;

Antonyms:

cathode; anode; walk;