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extract coal
开采煤炭：从地下或露天矿床中开采煤炭。
常用释义
开采煤炭：从地下或露天矿床中开采煤炭。
例句
全部
The
company
envisioned
opening
the sides
of
two
mountains
to
extract
coal
.
这家公司打算挖开两座山的山坡采煤。
Miners
had
to
dig
deeper
to
extract
coal
,
which
became
uneconomical
.
为了提高产量，矿工不得不向更深处挖掘，这变得越来越不合算。
Design
of the
Hydraulic
System
of
Extract
Coal
Filter
Press
压滤机液压系统设计
Study
on
Technique
to
Extract
Coal
and
Coke
Together
煤焦共采采掘工艺初探