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ppbw
abbr.
abbr.
ppb by weight
(
MichaelBurov
)
O&G
parts per billion by weight
tech.
ppb mass
(неточно вместо ppbm; чаще: ppb by mass
MichaelBurov
)
;
ppb by mass
(
MichaelBurov
)
PPBW
abbr.
abbr., mil., avia.
pulse particle beam weapon
tech.
pulse particle beam weapon
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