Выращи единицах измерения 4ч23мин - №17134848

Выращи единицах измерения 4ч23мин
- Предмет:
  Математика
- Автор:
  lincoln362
- 6 лет назад

Ответы 1

но мне кажется это не правильно.
- Автор:
  boo bugr5oz
- 6 лет назад
- 0
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On laying out a new road certain general principles have to be kept in mind. Motive power is economized by easy gradients; at the same time it is not desirable to deviate much from the direct route between the fixed points (towns and villages) through which the road must pass since excavation works are expensive; these must be as small as possible. A careful survey of two or three trial lines should be made before the route is finally decided upon; this involves also an examination of the geological features of the district and of streams which have to be crossed by bridges. In fact, the formation of an extended line of road involves the construction of bridges, viaducts and other important works which require the greatest engineering skill.
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Permanent motor car roads or motorways, having a specially constructed stable carriageway with a road surface of an improved type. These roads are constructed for high-speed traffic. All superhighways of first class roads are roads of this kind. They usually cover long distance and are constructed according to strict technical regulations. These roads are constantly being improved so as to meet all the requirements of comfortable driving. They are equipped with special maintenance facilities, repair shops, gasoline stations, etc. Such a highway for example has been laid from Moscow to the Crimea. There is a filling station at every hundred kilometers and a hotel at every three hundred kilometers. People from different central cities are able to travel to the Black Sea in buses or cars of their own.
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