Definição de PPB | Babel Free
\pe.pe.be\Equivalentes
Exemplos
“The International Organization for Standardization (ISO)² does not accept the common use of parts per billion (ppb) for two reasons: the meaning of billion is ambiguous, and parts is also ambiguous because it could refer to volume, mass, number, or some other measure.”
Nível QECR
C2
Proficiente
Esta palavra faz parte do vocabulário QECR C2 — nível proficiente.
Esta palavra faz parte do vocabulário QECR C2 — nível proficiente.
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