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| English | Russian |
| backlog of firm orders | портфель твёрдых заказов (backlog of firm orders can be one of the better indicators of the level of business to be anticipated, but it has to be evaluated carefully Alex_Odeychuk) |
| backlog of orders | портфель невыполненных заказов |
| backlog of unfilled orders | невыполненные заказы |