User:H.Seldon

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cs
Tomuto uživateli je čeština mateřským jazykem.
de-1
Dieser Benutzer hat grundlegende Deutschkenntnisse.
en-2
This user is able to contribute with an intermediate level of English.


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My pictures

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fluorescent_lamp-function.gif - animated, own work
fluorescent_lamp-function.gif - animated, own work
Fluorescent tube1.GIF - own work
wiring_of_fluorescent_lamp.gif - own work
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