German term
Italy
"always look on the bright side of life"
Native in: Italian 
Works in: German to Italian, English to Italian, Italian
mediumkolben
Jun 23, 2014 16:54: haribert changed "Level" from "Non-PRO" to "PRO"
PRO (3): Eva-Maria P, Christel Zipfel, haribert
Non-PRO (1): Danila Moro
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Discussion
Medium = sostanza, fluido
quindi presumo che si tratta di un pistone che lavorando faccia passare /fluire una sostanza/un fluido (liquido)
spero che possa aiutare un po'. buon lavoro