Was heißt »Teilgebiet« auf Englisch?

Das Substantiv »Teilgebiet« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Die Algebra ist ein Teilgebiet der Mathematik.: Algebra is a branch of mathematics.

There are a large number of shops and businesses in the surrounding area.
How does the train service compare with other forms of public transport in the area?
She climbed on to the branch.
They climbed on to the branch.
A flood can be defined as the encroachment of water in an area or region which is usually dry.
We were holding on tightly to the branch.
We held on tightly to the branch.
Mary's house was situated in a maze of one-way streets almost unnavigable for drivers unfamiliar with the area.
From what I have seen, there are not many pedestrians in this area.
Mary made a run into the penalty area.
We're opening a new branch in Boston next month.
A new branch is opening next month in Boston.
Speaking on Italian TV, Pescara mayor Carlo Masci called the events in his area truly dramatic and said those responsible must pay.
The downtown area is the heart of the city.
Having grown up in a rural area, I have a talent for identifying different kinds of manure by scent alone.
There are a lot of wolves in this area.
With only a minute to go before full-time and his team trailing by two goals, Tom hoofed the ball towards the opposition penalty area.
About 9.5% of the earth's surface is desert, and about 33% of the earth's land area is desert.
Archaeological finds point to the fact that this area was well settled.
"Just turn right there. While we're in this area, we could stop at the car wash. Your car really needs it." "Well, I can't be bothered at the moment." "Doesn't matter!"