大陆架

Lowered sea levels exposed the shallow continental shelf beneath the Bering Sea.

海平面下降使白令海底部的浅层大陆架暴露出来。

The fit between the continental shelves is even better than that between the coastlines.

大陆架之间的契合程度比海岸线之间的契合程度更甚。

The real dividing - line between continents and oceans occurs at the foot of a steeper slope.

大陆和海洋的真正分界线是在大陆架较陡峭坡度的脚下。

In continental deposit and gas reservoirs are usually close to the source area.

下第三系煤系地层在大陆架大面积分布，具有雄厚的煤成气潜力。

First, Congress should open the way for environmentally responsible offshore exploration on the Outer Continental Shelf.

首先， 国会应该开放在环境上可靠的外层大陆架海面开发的道路。