Objective:To evaluate improved drainage method in pit operation.

目的：评价改良引流法用于肛肠术后的临床价值。

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Between that operation and Thursday's excavation, the pit was completely sealed, out of fear that air or insects could damage the beams of the ancient boat.

在这个操作和周四的挖掘之间，地道被完全密封着，所以不用担心空气或者昆虫会对这些木材造成伤害。

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The mining operation includes a tan pit mine, processing equipment, and tailings ponds, where water and minerals are stored after the oil is removed.

采矿作业包括棕褐色的露天矿坑，加工设施和尾矿池，也就是分离石油后的水和矿物存储的地方。

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The big prize here is a 20% stake in the Fort Hills oil sands project, an open-pit mining operation targeting 3.4 billion barrels of bitumen.

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Timmins owns 100% of the open-pit heap leap operation.

FORBES: Timmins Sees Its San Francisco Mine Having 10 Year Mine Life -- CEO

The delays were caused by new Argentine import restrictions, which the company said has hindered its ability to purchase necessary spare parts in-country to keep all open-pit mining equipment in continuous operation.

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