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катодна

Metal filaments that emit electrons in a fluorescent lamp. Negatively charged free electrons emitted by the cathode are attracted to the positive electrode (anode), creating an electric current between the electrodes.

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Pramonės šaka / sritis: Biology Category: Anatomy

гркљан

The larynx (plural larynges), commonly called the voice box, is an organ in the neck of mammals involved in protecting the trachea and sound ...