用unitary system造句子，“unitary system”造句

Research on Bessel vectors, frame vectors and Riesz vectors of unitary systems in a Hilbert space;

This policy is a creation, which could solve the unification of China under the circumstance of unitary system.

The term is especially often used in Russia, where the Soviet planned economy created hundreds of unitary system towns in supposedly rational locations, often in geographically inhospitable areas.