"To be" and its functions. "To have" and its functions

8. At the end of the timed period, the spring must be rewound or the timer reset for the next interval which may range, depending on the type of timer employed. III. Translate the sentences paying attention to the participles as attributes:


1. With increased knowledge of these fluctuations we may improve the accuracy of this test.
2. The measured changes of neutron intensity with magnetiza­tion of the iron proved that the neutron is influenced strongly by the magnetic fields of the iron atoms.
3. The reduction in propellant weight made possible by the use of nuclear rockets permits an increased payload.
4. The intensity recorded during the first few days after the solar protons had arrived showed the decreased intensity of galac­tic cosmic radiation.
IV. State the function of ed-forms and translate the sentences:


1. The tube elements are sealed in an evacuated glass or metal enclosure so that the electrons should have an unobstructed part between the cathode and the anode.
2. In some electronic tubes, when desired, a small amount of inert gas at a low pressure may be added.
3. When made in the form of a filament, it is called the directly heated cathode.
4. The effect of the grid is to increase the flow of electrons from the cathode to anode when charged positively with respect to the cathode.
5. We may effectively control the anode currentproduced by means of the grid.
6. The vocabulary used included 952 English words.


V. Translate the sentences paying attention to the participles as adverbial modifiers:


1. Subsequent observations showed a high degree of variabi­lity, indicating that the X-ray emission changes considerably throughout the sunspot cycle.
2. The nature of the solar particle radiations needs to be explo­red out to distances of many Earth radii, calling for the use of satellites in eccentric orbits.