variable ventilated propeller

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Soko J-20 Kraguj — infobox Aircraft name = J 20 Kraguj type = Fighter Bomber manufacturer = SOKO caption = Yugoslav Air Froce J 20 Kraguj designer = SOKO first flight =1964 introduced retired = primary user = SFR Yugoslav Air Force more users = number built = 85… … Wikipedia
Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… … Wikipedia
insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… … Universalium
energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy … Universalium

Словари и энциклопедии на Академике