literal translation

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Note added at 9 mins (2008-10-02 18:06:06 GMT)
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Examples:

"El altavoz inalámbrico y acuático de Neiman Marcus tiene una forma de esfera y es capaz de flotar sobre el agua, pudiendo incluso sumergirse completamente ..."
http://technorati.com/posts/ud6AZ7FMq3Gl43ybMwTl5HLCq4UGt5AZ...
The floating wireless speaker from Nieman Marcus is sphere-shaped and able to float on water, ***and may also/even*** be completely submerged...

"Así, los ordenadores infectados son utilizados por el spammer como "ordenadores zombis", que envían spam a sus órdenes, pudiendo incluso rastrear los discos ..."
http://es.wikipedia.org/wiki/Correo_no_deseado
So the infected computers are used by the spammer as "zombie computers" which send spam at its command, ***and may also/even*** trace the disks...

"Es fácil ver cómo esto puede hacerle sentirse deprimido e infeliz, pudiendo incluso provocar que su problema empeore. ..."
http://www.gobiernodecanarias.org/sanidad/scs/su_salud/adult...
It's easy to see how this can make him feel depressed and unhappy, ***which may also/even*** make his problem get worse.


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Note added at 18 mins (2008-10-02 18:15:19 GMT)
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As Daniel has pointed out, and as many of the examples I cited and translated show, the word "and" is often better than "which" here - in order to refer to the correct antecedent.

In this situation, the translation would be:

"...[they] show the minimum range ... and may even ..."

Hope this helps