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to phrases
surface film
el.
表膜
met.
表面膜
oil
表层氧化皮
surface film:
31 phrases
in 14 subjects
Agriculture
1
Aviation
2
Ceramics
1
Chemistry
3
Electronics
1
General
1
Metallurgy
3
Oil / petroleum
2
Plastics
1
Polymers
1
Refrigeration
2
Space
1
Technology
11
Wind Energy
1
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