| 单词 | continental shelf |
| 释义 | continental shelfuncountable noun The continental shelf is the area which forms the edge of a continent, ending in a steep slope to the depths of the ocean. ...the deep water off the Continental Shelf. continental shelf in British Englishnoun the sea bed surrounding a continent at depths of up to about 200 metres (100 fathoms), at the edge of which the continental slope drops steeply to the ocean floor continental shelf in American English a submerged shelf of land that begins at a continental shoreline, slopes downward gradually at an angle of about 0.1° for a variable distance, and ends at the top of a much steeper downward slope (continental slope) at an angle of about 3° to 6° until it reaches the ocean floor: at the outer edge of the shelf the depth of the ocean is usually between about 90 m (300 ft) and 180 m (600 ft) Examples of 'continental shelf' in a sentence |
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