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1·The ban, which has been in effect since 1981, covers more than 80 percent of the U.S. coastline and the outer continental shelf.

这项禁令是1981年生效的。禁令涵盖了美国超过百分之80以上的海岸线和大陆架地区。

2·One of the morepromising energy frontiers of the Outer Continental Shelf, the acreage isestimated to contain 15 billion barrels of oil and 76 trillion cubic feet ofnatural gas.

这是外大陆架上最有前途的未开发的能源宝地之一，估计这块面积蕴藏150桶原油和76兆立方英尺天然气。

3·The results show that Kuroshio intrudes onto the continental shelf of East China sea in large scale and during its flow water is exchanged ceaselessly with outer sea along Ryukyu Island.

模拟结果表明黑潮在东海陆架有大规模的入侵，其在沿东海陆坡流动途中沿着冲绳岛与外海不断的进行水体交换。

4·These lights can be so dense that they visibly can be so dense that they visibly outline the outer part of the South American continental shelf and entire seas in Asia.

渔船的灯光非常密集，可以清清楚楚地勾勒出南美大陆架的外部轮廓以及整个亚洲海域的轮廓。