As a rule, furniture shelves mounted on pins inserted into holes of the side walls. These nodes can be improved: choose in the shelf a groove into which and hidden support. In addition, such attachment will prevent the shelf from the possible displacements.
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Training U-2 aircraft - single-engine biplane of wooden construction with fixed landing gear, was designed at the factory number 1 in Moscow under the leadership of H. H. Polikarpov. His...
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Smoothly change the brightness of room lighting or hall comfortable with the thyristor voltage regulator (see Fig.). The scheme allows you to adjust the load voltage ranging from 220 V...
