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And in chess. Ладья ходит жэ пять - жэ четыре.

Like in the song:
"Вэ-вэ-вэ Ленинград,
Вэ-вэ-вэ точка ру!"
:D

I think that Latin alphabet is perceived as a technical alphabet or so. It is used in mathematics ("a biciclyst riding from point A to point B" :)), in physics. etc. Sometimes Greek letters are also...