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English to Italian translations [PRO] Science - Chemistry; Chem Sci/Eng
English term or phrase:serve marine pollutants
Si tratta di un documento relativo alle diciture da apporre su vari tipi di sostanze chimiche.
A un certo punto si legge: If the transported substance or goods are defined as harmful to the marine environment this has to be identified as a marine pollutant or a serve marine pollutant by the letters P or PP. Non riesco proprio a capire il senso di "serve". Qualche idea? Grazie!!