Вопрос № 800615 - Английский язык

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The plant where high-density polyethylene pipe is being manufactured needed repairs to its pipe storage area. The repairs became necessary because the stone layer did not shed water and it caused cracks. The cracking of the storage pavement area made it necessary to stabilize the site.
So it became necessary for engineers to look for a way that would be economical and would not require shutting down the operating area of the plant. After testing a number of alternatives, it was decided to use polypropylene fibres for the purpose. It was found out that when being mixed with soil the fibres produce the necessary stability. The way the engineers proposed turned out to be economical and quite successful.
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The repairs became necessary because …

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The new concrete pipe being manufactured may be classified as the benchmark of industry. Among other excellent qualities, it possesses the highest structural strength compared with any sanitary sewer.
What are the main characteristics of the pipe that make it so popular? These are advanced concrete mix design, and steel reinforcement. High quality manufacture processes allow the pipe to be used in any site conditions, from shallow fills to deep bury situations. Strength, concrete’s pipe’s durability and its versatility are the main properties that are combined in the pipe. They produce the technology one can trust.
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Strength, concrete’s pipe’s durability and its versatility _______.

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The new concrete pipe being manufactured may be classified as the benchmark of industry. Among other excellent qualities, it possesses the highest structural strength compared with any sanitary sewer.
What are the main characteristics of the pipe that make it so popular? These are advanced concrete mix design, and steel reinforcement. High quality manufacture processes allow the pipe to be used in any site conditions, from shallow fills to deep bury situations. Strength, concrete’s pipe’s durability and its versatility are the main properties that are combined in the pipe. They produce the technology one can trust.
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Strength, concrete’s pipe’s durability and its versatility _______.

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Nowadays suspended ceilings have become a very popular and economical feature in many types of buildings. The most numerous among these buildings are office and laboratory structures. Many of them install and maintain complex mechanical and electrical installations above the ceiling. These installations include air conditioning ducts, water and waste piping and electrical and communications wiring. They also include such services as fume ducting, vacuum piping, fuel gas lines, compressed air lines, water piping, and chemical waste piping. All these ducts and pipes occupy a considerable space in the building. In some of them they may be equal to the amount of their living space.  
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All these ducts and pipes _______.

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There are different shapes in the picture. They are triangles, squares, rectangles and circles.
Triangles have three angles. Squares and rectangles have four sides. Squares have four equal sides, but rectangles have two equal sides. Circles do not have angles or sides.
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Squares and rectangles have _______.

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There are different objects in the picture. There is a box, a wheel, a frame, a door and a pair of nails. They have different shapes. The box is square. The door is not square, it is rectangular. The nails are circular. The wheel is circular too. The frame is triangular.
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The door is _______.