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光学设备
agric.
optics
(optica)
busin.
optical apparatus
el.
optics
tech.
optic equipment
;
optical equipment
telecom.
optical device
光学 设备
:
55 phrases
in 7 subjects
Aviation
6
Electronics
21
International trade
1
Project management
1
Space
9
Technology
16
United States
1
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