Those letters are all Roman, not Cyrillic. The English language uses the Roman alphabet too. The Czech language uses some diacritical marks over some letters that aren't all shared with other languages, but other diacritical marks are shared, like accent marks. The "check mark" over the "C" is called a "háček," pronounced "haw check." It makes the letter "C" sound like "ch" in English. It is usually transliterated "Cz" into English.
We have a few threads on the forums about the meanings of the various words stamped on CZ pistols. Those threads also often list the meanings of the various proof stamps and acceptance stamps you'll find. If you have trouble googling them, I might be able to rummage up one or two of them. Let me know.
Oh, the manufacturer name on the top of the slide translates to "Czech Arms Factory in Prague" and the serial number. I have to look up the "A.S." abbreviation, but I think it means "Joint Stock Company," and it is like "Corp." or "Inc." here in the U.S., or "Ltd." in the British Commonwealth. It also means your pistol was built before communism.
Yes, I looked it up, and it means "Joint Stock Company."