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to phrases
secondary control
auto.ctrl.
辅助控制
el.
二次控制
oil
二次井控
tech.
大地测量二级控制
;
辅助操纵
;
二等控制
secondary control:
55 phrases
in 14 subjects
Automobiles
5
Aviation
8
Computer networks
1
Earth sciences
1
Electronics
3
General
1
Hydroelectric power stations
2
Information technology
1
Mechanics
1
Metallurgy
11
Oil / petroleum
2
Space
6
Technology
12
Telecommunications
1
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