IV. Translate the following text into your native language:
A semiconductor is often defined as an electric conductor that has a conductivity intermediate between that of an insulator and that of a metal. The more important semiconductors are: boron, germanium, silicon, selenium, phosphorus, gray tin and others.
The mechanical properties of semiconductors vary greatly. However, in hardness, brittleness and fracture strength, semi-conducting crystals resemble insulating crystals more than they do metals. Besides their electric properties which in themselves may be of great variety, semiconductors vary in such physical qualities as magnetism, specific heat and thermal conductivity.
Semiconductors are widely used in electronics. Engineers and physicists are going to solve many engineering problems my means of semiconductors.
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