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Meanings of ppb in rus
Единица измерения относительных величин.
Related terms
Usage of ppb in rus
1
Интерес наших ученых к фосфину возник после недавнего обнаружения этого биомаркера в атмосфере Венеры в концентрации около 20 ppb (parts per billion, частиц на миллиард).