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单词
billion
释义
billion
Formerly in the UK, one million million, 10
12
, but the US meaning of one thousand million, 10
9
, has now been adopted worldwide
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permanent magnet
permeability
permittivity
permutations and combinations
perpetual motion
personal computer
perturbation
perturbation theory
perversion
PET
peta-
pewter
Pfund series
pH
pH scale
phase
phase angle
phase diagram
phase modulation
phase rule
phase space
phase speed
phase transition
phase-contrast microscope
phases of the moon
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更新时间:2026/3/27 20:40:50