Вопрос № 911498 - Английский язык

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Steel, copper and aluminium are used in making engineering products.
Steel is a grey plastic material. It is heavier than aluminium but it is the hardest and the strongest of these three metals.
Copper is a red metal. It is harder and stronger than aluminium and more flexible than steel. But copper is the heaviest and the most expensive metal. The lightest and the most flexible of these materials is aluminium. It is a white hard metal.
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What kind of metal is aluminium?

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Steel, copper and aluminium are used in making engineering products.
Steel is a grey material. It is heavier than aluminium but it is the hardest and the strongest of these three metals.
Copper is a red metal. It is harder and stronger than aluminium and more flexible than steel. But copper is the heaviest and the most expensive metal. The lightest and the most flexible of these materials is aluminium. It is a white hard metal.
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What kind of metal is aluminium?

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Robert Stephenson, the son of George Stephenson was a British civil engineer. He is mostly well-known for the construction of several notable bridges.
He was born in 1803. He was educated in Newcastle and at the University of Edinburgh. In 1829 he assisted his father in constructing a locomotive known as the Rocket, and four years later he was appointed construction engineer of the Birmingham and London Railway, completed in 1838.
Stephenson built several famous bridges, including the Victoria Bridge in England, the Britannia Bridge in Wales, two bridges across the Nile in Egypt and the Victoria Bridge in Montreal, Canada.
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Robert Stephenson is mostly well-known for the construction of …

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Ductility is the ability of a material to deform without breaking. One of the great advantages of metals is their ability to be formed into the shape that is needed, such as car body parts. Materials that are not ductile are brittle. Ductile materials can absorb energy by deformation but brittle materials cannot.
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Ductility is the ability of a material to …

Заполните пропуски в инструкции следующими словами:
1) 1_______ the concrete well before you use it.
2) Don’t open the tin until you’ve 2_______ it.
3) You should not plaster the wall until you’ve installed the 3_______.
4) Ladders made of 4_______ must never be used near electrical wires.

Заполните пропуски в инструкции следующими словами:
1) Don’t use 1_______ which are cracked.
2) 2_______ that are bent should not be used.
3) Burnt wires must be 3_______.
4) You 4_______ clean your tools before you use them.