“federal standard”可以造什么句，federal standard造句

Although more than 30 states already have legislation to better regulate indoor tanning, doctors think a federal standard is needed, especially since artificial UV light is a known carcinogen.

Since they are imported, they can be set to read-only and not changeable since their definitions are part of the federal standard.

Section 306 directs the Administrator to establish federal standards of performance for various industry categories of new sources.