Washing machine. The greatest invention of the mankind

Main stages of the origin and development of washing machines, assessment of the importance of this process in society. Appearance and functionality of the first washing machines. Modern machines with direct drive, their advantages and disadvantages.

Рубрика Иностранные языки и языкознание
Вид презентация
Язык английский
Дата добавления 20.01.2014


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