Francium hasn't practical applications; it is only a subject of scientific research.
Francium is not used medically.
Francium hasn't practical uses.
Francium has any uses.
Francium was used only for scientific researches.
Francium has not now practical applications; francium is used only for scientific studies.
Francium hasn't a practical use.
Francium hasn't today practical applications; francium is used in laboratories only for scientific studies.
Francium has not practical uses; it was used for studies in spectroscopy and quantum chemistry.
Francium has any use.
No practical applications. Francium is used only for scientific studies.
Francium is used only in specialized laboratories, for researches.
Francium hasn't practical applications; it is only a subject of scientific research.