chiefly US <主美>
with obj.
1- obtain (ore or coal) by opencast mining露天采矿, 露天采煤：
lignite coal is strip-mined at depths of 15 to 35 metres
褐煤是从15到35米深的露天矿开采的
as noun strip-mining protected lands opened up to strip-mining for coal.辟为露天采煤的保护地。
1.1
- subject (an area of land) to opencast mining对（某地区）进行露天采矿。
noun
strip mine
- a mine worked by this method露天矿。