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to phrases
unit function
construct.
单元
单位(阶跃)
函数
tech.
单元函数
;
单位函数
unit function:
44 phrases
in 16 subjects
Agriculture
1
Architecture
1
Automatic control
2
Aviation
5
Computers
2
Earth sciences
2
Electric machinery
1
Electronics
9
Information technology
1
Management
1
Mathematics
3
Metallurgy
1
Space
3
Technology
10
United Nations
1
Water resources
1
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