The functions, working principle, classification of UPS and EPS, as well as the main characteristics of the common type of back-up, on-line, on-line interactive UPS are expatiated.

摘 要 分别介绍了UPS和EPS的功能、工作原理、分类，以及常见的后备式、在线式、在线交互式三种UPS的主要特点。

youdao

Students will be able to register the results of their tests in an interactive on-line map.

UNESCO: World Water Assessment Programme (WWAP)

The presentation of the Cook Islands expert highlighted the interactive on-line databases of biological diversity and Maori languages which could also contribute to the ICH safeguarding and inventory-making efforts.

UNESCO: OFFICE IN APIA

In 30 years' time, however, 30% of consumer activity could be taking place on-line, says John Neilson of Microsoft's interactive services division.

ECONOMIST: Taxes slip through the Net