Last Updated：2025/12/30
Sentence
Two
other
major
coal-mining
centers,
each
producing
coking-grade
bituminous
coal,
have
been
developed
in
Honan
since
the
late
1950's.
Hopi,
in
northernmost
Honan,
arose
in
1957
on
the
site
of
a
small,
primitive
operation
in
a
deposit
of
lean
coal,
low
in
volatile
content.
A
city
was
established
in
that
year,
and
the
mining
complex
was
linked
by
a
12-mile
rail
spur
with
Tangyin,
on
the
main
Peking-Hankow
line.
Quizzes for review
Two other major coal-mining centers, each producing coking-grade bituminous coal, have been developed in Honan since the late 1950's. Hopi, in northernmost Honan, arose in 1957 on the site of a small, primitive operation in a deposit of lean coal, low in volatile content. A city was established in that year, and the mining complex was linked by a 12-mile rail spur with Tangyin, on the main Peking-Hankow line.
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