It describes base station antenna principle, type selection, parameter set and installation, with emphasis on down-tilt and diversity space.

对基站天线的基本原理、天线选型、天线参数设置、天线安装等方面进行了描述，对天线下倾角、分集距离等进行了重点讨论。

youdao

"It's there.Same like Indonesia, we have hundreds of languages and we live under the same principle unity in diversity."

VOA: standard.2010.06.21

Once the principle of diversity as merit was established, all-male Yale and Princeton were hardly in a position to reject the demands of the feminist movement for co-education, which they implemented around 1970.

ECONOMIST: Ivy League universities

In Grutter, he accepted the principle that "diversity" might justify racial preferences in higher education if scrutinized strictly.

WSJ: Review & Outlook: Racial Preferences Redux

It is because of a thorough understanding of this principle that I seek out opportunities to serve through diversity work in my community, impacting its success today as well as in the years to come.

WHITEHOUSE: Champions of Change Blog