Вопрос № 237465 - Английский язык

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Although several companies each produce over a billion individually-packaged (known as discrete) transistors every year, a great number of transistors produced are in integrated circuits (often shortened to IС, microchips or simply chips) to produce complete electronic circuits. A logic gate consists of about twenty transistors whereas an advanced microprocessor, as of 2006, can use as many as 1.7 billion transistors.
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We are finally ready to apply the knowledge we gained in previous sections about electrons, vacuum 1_________________ and transistors to some practical matters. In the following sections we shall consider a variety of circuits employing electron tubes and transistors. 2_________________ are combinations of tubes or transistors with other components, such as resistors, capacitors and inductors, and form the 3________________ building blocks of electronic systems: radio, automatic computer and so on. To understand the systems, you must be familiar with the circuits that 4_______________ them up.

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A semiconductor is a solid whose electrical _______ can be controlled over a wide range, either permanently or dynamically.

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Important parameters in specifying electron microscopes include accelerating voltage, total magnification and_____.

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Solar cell is a _______ devised to convert light to electric current.

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 _______ sensors are used to detect liquid or powder levels, or interfaces between liquids.