Significados de unfixed periods en inglés

Bigamy, palming or concealment of Banishment for unfixed periods.

The Prison Congress of Rome naturally did not accept the principle of punishment for unfixed periods.

I agree with Kirchenheim that Dr. Kraepelin's scheme of seclusion for unfixed periods is more practical and hopeful.

Nevertheless, personal freedom (which is held to be violated by seclusion for unfixed periods) is greatly respected by the English people.