some subtitles are not being translated in relay/setup/bridge/ but they are translated in transifex
If you see the different cards for operating systems at https://tor-www@review.torproject.net/tpo/web/community/l10n/ru/relay/setup/bridge/ you can see that FreeBSD, NetBSD, OpenBSD, DragonFlyBSD and Windows subtitles are not translated.
But the translation in transifex is complete. The same happens in all languages.