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| подготовительные, внутренние услуги (The services downstream are the ones that consume the upstream service. In particular, they depend on the upstream service. So the front-end is downstream to the back-end because it depends on the back-end. The back-end can exist meaningfully without the front-end, but the front-end doesn't make sense without the back-end. AllaR) | |||
| upstream services: 4 фрази в 2 тематиках |
| Нафта | 1 |
| Сахалін | 3 |