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| flue dust; pulverised fuel ash | |||
| fly ash Finely divided particles of ash that are entrained in flue gases resulting from the combustion of fuel or other material. The particles of ash may contain incompletely burned fuel and other pollutants; fly ash; fly-ash | |||
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| fly ash | |||
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| fly ash | |||
| cenizas volantes: 10 phrases in 3 subjects |
| Construction | 4 |
| Environment | 5 |
| Industry | 1 |