Off-the-shelf

Relay

Sustain

Approach

a. coming near to

b. approximation, a way to solve a problem
с way, path, road

a. enable to keep up, maintain

b. suffer, undergo
с keep from falling

a. supply of fresh horses to take the place of tired ones

b. device which receives signals and transmits them with greater
strength, thus increasing the distance over which they are
carried

с place from which radio programs are broadcast after being received from another station

payload

a. passengers and cargo, but not fuel

b. bomb in a missile

с crew and instruments of a spaceship item

a. each single thing, part or object in a list

b. detail or paragraph (of news)
с number of a program

a. commercially available

b. ready to use

с possible or likely

Упражнение 3. Заполните пропуски словами. А.

capacity as well laser information light existing advantage space doubt amplified cost conventional

Optical fibres are made of glass and use (1)... (usually from a (2)...) to transmit messages. There is no (3)... optical fibre sys­tems have enormous (4)... over (5)... transmission systems. They have a much higher (6)... than copper wires, can carry much more (7)... and have a potentially lower material (8)... Besides, optical fibres occupy far less (9)... The quality of transmission is high (10)... The signal does not need to be (11)... as often as with (12)... ca­bles. Optical fibres do not suffer from interference.

Дата добавления: 2014-12-17