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parts per trillion 10**12
chem. parti per trilione
part per trillion
chem. parti per trilione
 English thesaurus
parts per trillion 10–12
abbr., tech. ppt (MichaelBurov)
parts per trillion 10–12
tech. ppt (MichaelBurov)
Parts Per Trillion
abbr. PPT
Part Per Trillion
immunol., abbr. PPT