"focusing cups" in German focusing cups Wehnelt-Elektroden Wehnelt-Zylinder Detailed translations for "focusing cups" focusing cups focusing cups(also: modulating electrodes, modulator electrodes, Wehnelt electrodes, Wehnelt cylinders) Wehnelt-Elektroden{masculine plural} focusing cups(also: modulating electrodes, modulator electrodes, Wehnelt electrodes, Wehnelt cylinders) Wehnelt-Zylinder{masculine plural}