III. Переведите сложноподчиненные предложения:

1. Аn important factor of Siberian power generation is that cheap coal and powerful rivers are in abundance there.

2. That the accelerated development of railroads is а requirement of our time is а well-known fact.

3. А transformer cannot bе called а machine for it has nо moving parts.

4. A.S. Popov invented а device which received electrical signals at great distances without аnу wires.

5. That Mendeleyev was right in his predictions is proved bу the discovery of new elements.

6. For аn electrician the most important question is whether а solid is а conductor of electricity or not.

IV. Переведите предложения, обращая внимание на союзы и союзные слова, вводящие придаточные дополнительные предложения:

1. It should be noted that the technical documentation of the hydroengineering project contained 199 volumes.

2. We know who took part in the design of the flood defense system.

3. We understand what gigantic experimental work was made before the adoption of the project.

4. Foreign delegations are often explained how the construction of the protective complex was started.

5. Visitors always ask if the flood defense system will be put into operation in time.

Task №4.

I. Пользуясь словарём, переведите письменно следующие предложения:

1. Hydrocarbons – crude oil and natural gas derived from the restructured hydrogen and carbon in the remains of early plant and animal life – occur as fluids that occupy the pore spaces of sedimentary rocks.

2. There are several ways in which the liquefiable components may be removed from natural gas: absorption, refrigeration, and combinations of these.

3. As natural gas came to be regarded as a useful, clean source of energy instead of merely a waste byproduct of crude oil, its value grew.

4. Natural gas liquids are hydrocarbons that have the properties of the normal paraffines ethane through decane with no more than trace amounts of anything heavier.

5. Natural gas contains hundreds of hydrocarbon compounds, most of which are present only in trace quantities.

6. The use of conventional oil and gas separations and emulsion treaters is not considered gas processing, or are treatments to remove contaminants such as dust, dirt, water vapor, hydrogen sulfide, and carbon dioxide from the gas.

7. Gas processing is any operation whose primary purpose is the recovery of liquids from gas.

8. Like commercial propane, commercial butane is a hydrocarbon product predominately butanes and/or butylenes.

9. Liquefied petroleum gas (LPG) is a mixture of commercial propane and commercial butane.

10. Ethane is produced as a separate fluid only in large plants because of the high capital investment required.

11. Natural gas, liquid hydrocarbons, and hydrocarbons are separated by various field processing methods.

12. Ethane is produced as a separate fluid only in large plants.

13. Sulphur is a very low-priced commodity, so the feasibility of converting H₂S to sulphur depends to a large measure on the availability of other sources of sulphur in the area.