Translate the given Spanish text to English
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Question: A primary transformation is applied to a source speech signal to extract primary features therefrom.

Answer: Se aplica una transformacion primaria a una senal vocal de origen para extraer caracteristicas primarias de la misma.


Question: The impeller has a tapered bore with impeller threads.

Answer: El propulsor tiene un orificio ahusado con roscado de propulsor.


Question: A slag cement mixture and process of making the same is disclosed.

Answer:
Se describe una mezcla de cemento de escoria y un proceso para elaborar la misma.