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| English | Russian |
| performed operations | выполненные работы ("Managing Service Operations: Design and Implementation" by Bill Hollins, Sadie Shinkins, 2006 The main problem with quality control is that it does not work. (...) For example, what percentage of badly performed operations should we tolerate? – некачественно выполненные работы ART Vancouver) |
| performed operations | проведённые работы (ART Vancouver) |