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for exposed or partly exposed disc brakes, the prescribed amount of water must be directed on to the rotating disc in such a manner that it is equally distributed on the surface or surfaces of the disc swept by the friction pad or pads.
per i dischi dei freni sprovvisti di protezione o protetti solo parzialmente, la quantità di acqua prescritta deve essere spruzzata sul disco in movimento in modo da distribuirsi in modo uniforme sulla o sulle superfici di attrito disco con la o le placchette.