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超高真空 chāogāo zhēnkōng
avia. ultra high vacuum
el. extreme vacuum
met. ultra-high vacuum
space ultra-high-vacuum
tech. ultrahigh vacuum
超高真空
: 40 phrases in 9 subjects
Aviation2
Chemistry1
Electronics15
General1
Geophysics1
Metallurgy1
Oil processing plants2
Space2
Technology15