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акт освидетельствования скрытых работ contraintes
génér.	inaccessible hard-to-access, embedded installations inspection report (4uzhoj); Concealed Work Inspection Certificate (Alexander Demidov)
constr.	Concealed works acceptance act (освидетельствования – examination, inspection – но в этом случае принимающая сторона согласовывает скрытые работы. nurseit); hidden works acceptance certificate (Morning93); preconcealment inspection report (VLZ_58); inspection certificate for concealed work (VLZ_58); certificate of witness for concealed work (VLZ_58); certificate of witness for hidden work (VLZ_58)
karach.	hidden work act (Leonid Dzhepko)
prod.	hidden works act (Yeldar Azanbayev)
pétr.	act of hidden works (Johnny Bravo)
teng.	concealed work inspection report (e.g. "In accordance with current construction standards and rules in the USSR, concealed work must be inspected by the proper construction organization before being concealed by subsequent work." thefreedictionary.com Aiduza)
usin.	Concealed Work Inspection Record (Yerkwantai)
Акт освидетельствования скрытых работ
constr.	Act of Inaccessible Works (S. Manyakin)
pétr.	Hidden Works Inspection Certificate (Bemer)
акты освидетельствования скрытых работ
pétr.	acts of inspection of hidden work (Seregaboss)
Акт освидетельствования скрытых работ при монтаже оборудования и трубопроводов
génér.	Certificate of inspection of concealed work performed during installation of equipment and piping (snip.com ABelonogov)

акт освидетельствования скрытых работ: 8 phrases, 2 sujets

Pétrole / pétrole	4
Pétrole et gaz	4