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Translation examples
The gas concentration shall be measured once each hour during the two first hours after the beginning of the gas-freeing operation by forced ventilation or by extraction, by an expert referred to in 7.2.3.15.
Каждый час в течение первых двух часов после начала дегазации методом искусственной вентиляции или отвода концентрация газов должна измеряться экспертом, упомянутым в подразделе 7.2.3.15.
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