<qet-directory>
    <names>
        <name lang="cs">07- Piezoelektrické jednotky, elektret</name>
        <name lang="de">07- Piezoelektrische Kristalle, Elektret</name>
        <name lang="en">07- Piezoelectrical crystals, electret</name>
        <name lang="fr">07- Cristaux piézoélectriques, electret</name>
        <name lang="ja">07- 圧電結晶，エレクトレット</name>
    </names>
</qet-directory>
