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| sifting; screening; riddling | |||
| sieving The size distribution of solid particles on a series of standard sieves of decreasing size, expressed as a weight percent | |||
| classification by screening | |||
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cernere : 4 a las frases, 3 temas |
| Construcción | 2 |
| Materiales de construcción | 1 |
| Silvicultura | 1 |