In view of special conditions in quarry the paper takes Gujingxiang side-hill quarry as an example, introducing cutting wall mining method based on mining with steeper working slope.

结合露天采石场的具体情况，以古井祥业石场山坡型露天矿为例，介绍了基于陡帮开采的切壁开采方法。

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The rig had been working in the Beaufort Sea, off Alaska's North Slope.

CNN: Alaska drilling rig towed to harbor off Kodiak Island

As much as 150, 000 gallons of ultra low sulfur diesel and approximately 12, 000 gallons of other petroleum products are on board the Kulluk, which had been working in the Beaufort Sea, off Alaska's North Slope, until October.

CNN: Shell: Grounded drilling rig sound and fit to be towed