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9. Translate the sentences. Pay attention to the use of the Complex Subject.

1. Insulators are known to be substances which do not permit passage of the electric current.

2. Germanium is said to be a semiconductor.

3. The electron is supposed to move with great velocity.

4. Like charges are known to repel each other.

5. A voltage of current that is reproduced at equal intervals is stated to be periodic.

6. Thus began the career of the man who appears to have developed the first semiconductor devices for amplification.

7. These curves are seen to be similar in many respects to those of pentodes.

8. The magnesium battery is expected to have a possible watt-hour capacity of 245 per pound.

9. The students of radio engineering are certain to know that tubes with 4 or 5 elements are called tetrodes and pentodes respectively.

10. This design has proved to be of great interest to the power plant engineer for 2 principal reasons.

11. Electrical conductors are said to be in series if they are connected so that all the current which flows through one conductor must flow through each of the others.

12. The thermionic emission of electrons from hot bodies is seen to represent the same process.

13. If the meter is responsive to actual power, it is known to be an energy meter.

14. If a current transformer is said to have a ratio of 100/5 this means that the full load value of the main current is 100 amperes and the corresponding value of the instrument current is 5 amperes.

15. These 2 phenomena do not appear to have anything in common.

16. A filler is said to have a good thermal conductivity when it has a higher thermal conductivity than the mass.

17. Radium whose properties are known to be of the greatest importance to the present chemistry was isolated in 1910.

18. There does not appear to be an agreement between the results obtained.

10. Translate the sentences paying attention to the Complex Subject with the Infinitive.

  1. Light is thought to be…

  2. The speed of these particles is found to be…

  3. The rocket is known to be used…

  4. These forces are believed to act…

  5. The changes in the orbit are considered to be…

  6. These charged particles are supposed to possess…

  7. The planet is expected to have…

  8. The direction of the current is assumed to be…

  9. The diameter of this star is reported to be…

  10. This cyclotron appears to develop…

  11. The solid fuel rocket seems to be…

  12. The speed of particles happens to change…

  13. These conditions are likely to be found…

  14. Uranium is unlikely to exist…

11. Translate the sentences paying attention to the form of the infinitive.

Example:

The results are known to be used…

Результати, як вiдомо, використовуються…

The results are known to have been used…

Результати, як вiдомо, були використанi…

  1. The rocket is found to develop speed…

  2. The rocket is found to have developed speed…

  3. The rocket was found to develop speed…

  4. The rocket has been found to develop speed…

  5. The properties of the elements are known to vary…

  6. The properties of the elements are known to have varied…

  7. This limitation appears to have been overcome…

  8. This limitation appeared to be overcome…