network - a network of switching centers, connected by
multichannel trunk lines.

UHF - ultra high frequency; any radio frequency in the 300- to 3,000-
MHz range.

VHF - very high frequency; any radio frequency in the 30- to 300-MHz
range.

Telephones - main lines in use: This entry gives the total number of
main telephone lines in use.

Telephones - mobile cellular: This entry gives the total number of
mobile cellular telephone subscribers.

Television broadcast stations: This entry gives the total number of
separate broadcast stations plus any repeater stations.

Terminology: Due to the highly structured nature of the Factbook
database, some collective generic terms have to be used. For example,
the word Country in the Country name entry refers to a wide variety of
dependencies, areas of special sovereignty, uninhabited islands, and
other entities in addition to the traditional countries or independent
states. Military is also used as an umbrella term for various civil
defense, security, and defense activities in many entries. The
Independence entry includes the usual colonial independence dates and
former ruling states as well as other significant nationhood dates such
as the traditional founding date or the date of unification,
federation, confederation, establishment, or state succession that are
not strictly independence dates. Dependent areas have the nature of
their dependency status noted in this same entry.

Terrain: This entry contains a brief description of the topography.

Time Difference: This entry is expressed in The World Factbook in two
ways. First, it is stated as the difference in hours between the
capital of an entity and Coordinated Universal Time (UTC) during
Standard Time. Additionally, the difference in time between the capital
of an entity and that observed in Washington, D.C. is also provided.
Note that the time difference assumes both locations are simultaneously
observing Standard Time or Daylight Saving Time.

Time zones: Ten countries (Australia, Brazil, Canada, Indonesia,
Kazakhstan, Mexico, New Zealand, Russia, Spain, and the United States)
and the island of Greenland observe more than one official time
depending on the number of designated time zones within their
boundaries. An illustration of time zones throughout the world and
within countries can be seen in the Standard Time Zones of the World
map included in the Reference Maps section of The World Factbook.

To