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1 gen 1879 anni - Cоздания небольших электростанций на постоянном токе низкого напряжения 110-440 В

Descrizione:

Первые станции строились на золоторудных приисках как способы пе-рехода от ручного труда с механизированному.

Aggiunto al nastro di tempo:

Осипова И.М.

12 dic 2017

0

0

502

Data:

1 gen 1879 anni

Adesso

~ 146 years ago

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