From the history of electron devices lesson 8

Exercise 1

Translate the following words paying attention to affixes.

Radiation, radiate, irradiate, radiating, irradiated, radiator, detect, detected, detection, detecting, detectable, detective, travel, traveled, travelling, traveller, local, locality, locate, location, locator, train, training, trained, trainer, trainee, trainman, trainmaster, efficient, efficiency, efficiently, inefficient, proper, properly, property, improperly, surprisingly, surprised, surprise, surprising, act, active, actively, activity, inactivate, activate, deactivate, interaction, actuator, actress.

Exercise 2

Match the synonyms.

1. to begin	1. to change
2. to investigate	2. to teach
3. to radiate	3. wonderful
4. aid	4. adequate
5. able	5. to act
6. to function	6. to emit
7. to modulate	7. to use
8. to generate	8. to start
9. to employ	9. valve
10. surprising	10. greatly
11. tube	11. help
12. vastly	12. to study
13. to train	13. capable
14. proper	14. to produce

Exercise 3

Translate the following sentences paying attention to tenses.

1.There is a growing scientific evidence that prolonged exposure to some kinds of radio waves does cause at least low-level changes in the movements, working and possibly structure of molecules and cells in living tissue. 2. Naturally, optoelectronics engineers would love to make VCSELs from silicon, but the material does not emit light easily. 3. For 50 years hard disks have acted as relatively dumb devices, simply serving as storing blocks of data. 4. The drive manufacturers have to some extent become victims of their own success. 5. In both ATA- and SCSI-based systems, computers commonly divide a data file into a set of so-called logical blocks whose size ranges from 512 bytes to 4096 bytes and up. 6. The person who comes up with application thinks differently than the scientist who lays the foundation. 7. The principal application of any sufficiently new and innovative technology always have been and will continue to be applications created by that new technology. 8. Right now, wireless markets are moving into a stage where subscribers can freely substitute wireless service for fixed line service. 9.Straightforward as this change seems, the transition from providing wireless telephony to a complicated mix of data and other non-voice services is difficult and risky. 10. Once the spectrum and regulatory landscape stabilized in the 1970s, the industry increased capacity and efficiency many times. 11.People use Internet as much as they do these days because bandwidth in the fixed networks is almost free. 12. As the early test results have been good the team is working on methods of cheaply mass producing the substrates. 13.Not only do the defects shorten the lifetime of lasers, they also drive up the cost of the devices. 14. In February, a group of nine technology companies announced that they will jointly establish specifications for a new video recording format that marries a blue-violet laser to a 12 cm (CD or DVD size ) optical disk. 15. Toshiba is asking that anyone who wants to propose a blue-laser format present it to the working group. 16. In 2000, Sony and Pioneer demonstrated a prototype blue-laser format they have developed jointly. 17.Technology is evolving so rapidly that any standard may well prove merely temporary.

Exercise 4

Match the English words with their Ukrainian translations.

1. high bandwidth	1. роздiльна здатнiсть
2. aircraft detection	2. основна частина
3. output resonator gap	3. мiкрохвилева пiч
4. cavity magnetron	4. поза межами видимости
5. traveling wave tube	5. виявлення лiтака
6. comprehensive system	6. багаторезонаторний магнетрон
7. broadband capability	7. велика ширина смуги
8. microwave oven	8. вихiдна щілина резонатора
9. high-resolution	9. всеосяжна система
10. core element	10. лампа біжної (прямої) хвилі
11. line-of-sight	11. широкосмугова здатнiсть