1) серия; группа
2) матем. ряд
3) последовательность
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in series — партиями ( об обработке деталей )
- diameter series
- extra light series
- extra long series
- heavy series
- jobber series
- light series
- medium series
- micro series
- preproduction series
- series of speeds
- series of standards
- size series
- stub series
- super light series
- width series