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观测系统
guāncè xìtǒng
stresses
mil.
система наблюдений
seism.
система наблюдения
tech.
наблюдательная система
观测 系统
:
37 phrases
in 8 subjects
Astronomy
1
Aviation
2
Ecology
1
Electronics
1
General
17
Seismology
2
Technology
5
United Nations
8
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