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to phrases
周期性工作
zhōuqīxìng gōngzuò
met.
periodic duty
space
period duty
tech.
cyclic duty
;
cyclical duty
;
periodical duty
;
periodic work
;
periodical work
周期 性工作
:
8 phrases
in 4 subjects
Architecture
1
Astronautics
1
Electric machinery
3
Technology
3
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