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to phrases
parts-per-billion-level
stresses
goldmin.
мг / т
;
миллиграмм на тонну
(
MichaelBurov
)
;
частиц на миллиард
(
MichaelBurov
)
English thesaurus
parts-per-billion-level
abbr., goldmin.
ppb
(
MichaelBurov
)
parts-per-billion-level:
4 phrases
in 2 subjects
Gold mining
3
Nanotechnology
1
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