这张太空照片为我们展示了位于亚利桑那州绿谷镇（GreenValley，位置见文末图）西部及西北部的三个露天矿。
This astronaut photograph illustrates three open-pit mines located west-northwest of the town of Green Valley, Arizona.
露天矿生产过程中，需要及时提供采剥工程平面图。
It is necessary that stripping plan be timely provided during the opencast mining.
露天矿生产过程中，需要及时提供采剥工程平面图。
It is necessary that stripping plan be timely provided during the opencast mining.
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