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to phrases
free electron
auto.
物理学
自由电子
oil
游离电子
phys.
自由电子
free-electron
gen.
自由电子
free electron:
50 phrases
in 10 subjects
Aviation
2
Chemistry
3
Electronics
23
General
2
Life sciences
1
Metallurgy
10
Physics
1
Space
6
Technology
1
United States
1
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