2015-02-27
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1. Any of large group of organic compounds found in all living organisms.
2. A synthetic or naturally occurring polymer used in making plastics.
3. A polysaccharide that consists of a long unbranched chain of glucose units.
4. A liquid that dissolves another substance or substances to form a solution.
5. A process of boiling a liquid and condensing and collecting a vapour.
6. A suspension of small particles produced in a liquid by chemical reaction.
7. A homogeneous mixture of a liquid with a gas or solid.
4. Переведите предложения, обращая внимание на … обороты
1. Thousands of years ago stars were believed to govern the fate of men. 2. Scientists are known to agree that our universe is fundamentally dependent on two factors, one of which proves to be matter, the other energy. 3. The scientist found the atom to have, first of all a nucleus; the nucleus was found to be composed of the protons and neutrons.
4. Of all the available building materials, rock and stone are known to be traditionally associated with permanence.
5. The organic materials with the notable exception of wood appeared to be largely a development of the twentieth century. 6. We know metals to be extracted from natural ores, which of course are also ceramic materials. 7. The metals turn out not to be as hard as the ceramic materials, but ceramic materials have been stated to be very brittle. 8. Although neither hydrogen nor helium proved to be now commercially produced from air, it is appropriate to mention that neither liquid hydrogen nor liquid helium can be transported in the type of equipment used for liquid oxygen, nitrogen, and argon. 9. As the field of chemical engineering developed, physical operations have been found to be convenient to classify into a number of "Unit Operations", which could be separately studied and investigated.
