1·Research now indicates that sizable areas of southeastern Alaska along the inner continental shelf were not covered by ice toward the end of the last Ice Age.
现在的研究表明，在最后一次冰河时期的尾声阶段，阿拉斯加东南部沿岸的内大陆架的相当大的区域并未被冰覆盖。
2·It had been assumed that the ice extended westward from the Alaskan/Canadian mountains to the very edge of the continental shelf, the flat, submerged part of the continent that extends into the ocean.
人们过去曾猜测，冰山从阿拉斯加和加拿大山脉向西延伸到大陆架的最边缘，也就是大陆架扁平的、延伸到海洋中的水下大陆那部分。
3·The Aqishan-Yamansu island-arc belt occurred on a wide continental shelf sea in the Visean Stage.
阿齐山—雅曼苏岛弧带发生在维宪期阶段的广阔大陆架海上。
4·This time of year, they should be foraging from the sea ice floating over the productive waters of the continental shelf.
往年这个时候，它们应该在漂浮在这片大陆架地区食物丰富的海域上的冰面上捕食。
5·In 1945, though, the United States unilaterally claimed jurisdiction over the natural resources of its continental shelf.
虽然如此，但是1945年，美国单方面声称对其大陆架的自然资源拥有权限。