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ПИ-регулятор stresses
automat.	compound controller; PI controller
avia.	proportional plus integral controller; proportional-plus-integral controller
construct.	proportional plus reset controller
Makarov.	two term controller (пропорционально-интегральный регулятор)
tech.	PI-controller (ZoyaB); P.I. regulator (inn)
therm.eng.	proportional and floating controller
ПИ регулятор
O&G	proportional-integral controller
Russian thesaurus
ПИ-регулятор
abbr., tech.	пропорционально-интегральный регулятор

ПИ-регулятор: 7 phrases in 3 subjects

Electronics	1
Oil and gas	3
Robotics	3