#774872
What do lamps of emergency lighting have to differ from lamps of a working light in?
Варианты ответа:
  • In color
  • Signs or coloring
  • There are no fundamental differences
  • Execution
Тематика: Монтаж электрооборудования Основы электротехники Электрические и электронные аппараты
Курсы в категории: Инженерные науки
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