求翻译：而涉公共利益的规范意义在于，基于公共利益的行政征收和征用应符合“必要性原则”，以保持公共利益与私人利益之间的平衡。是什么意思？

The significance of involving the public interest standard is based on collection and administration of public interest should be consistent with expropriation, "the principle of necessity" in order to maintain public interest and the balance between private interests.

And the public interest, the normative significance lies in the administrative collection based on public interest and expropriation should be consistent with the principle of necessity" in order to maintain public interest and the balance between private interests.

But fords the public interest the standard significance to lie in, levies based on the public interest administration and takes over for use should conform to “the necessary principle”, maintains between the public interest and the private interest balance.

The normative significance of the public interests involved is that, based on the administrative collection and use of the public interest should follow the "principle of necessity" in order to maintain the balance between public interest and private interests.

The normative significance of the public interests involved is that, based on the administrative collection and use of the public interest should follow the "principle of necessity" in order to maintain the balance between public interest and private interests.