其中有郑和航海图, 郑和远洋楼船模型 、 郑和下西洋的图片及文字资料.
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Underwater photography is also important in mapping parts of the ocean floor.
水下摄影在绘制部分海床图时也是很重要的一个方法.
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Valuable amounts of minerals such as iron, copper and so on exist on the ocean floor.
例如铁 、 铜等这些大量有价值的矿物都存在于广阔的海底中.
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The damaged ship leaned over and slowly settled own on the ocean floor.
这艘遭毁坏了的船倾斜了,并缓慢地沉到海底.
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Plumes are hot enough to melt their way through the ocean floor or through a continent.
地幔羽的热量足以熔穿海底或大陆.
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Scientists are fairly certain about the effects of hot spots beneath the ocean floor.
科学家们确信在海底下方的热点作用.
词典精选例句
IN THE 1960 s and 1970 s, the idea of mining the ocean floor was all the rage.
在1960年代和70年代, 海底采矿的想法风行一时.
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A long, broad elevation that slopes gently from the earth's surface or the ocean floor.
斜坡:从地球表面或海底缓缓倾斜的长而宽的高地.
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The damaged ship leaned over and slowly settled down on the ocean floor.
被毁坏的轮船开始倾斜,然后慢慢地沉入海底.
《简明英汉词典》
它们与水深图稍有不同,后者实际上是洋底地形图.
词典精选例句
Rising molten rock flows out on the ocean floor and caps the fissures, trapping the water.
上升熔岩流到海底并堵住了裂隙, 结果把海水封在里面.
词典精选例句
About 235 miles ( 378 kilometers ) east of Halifax, the ocean floor drops away.
在哈利法克斯省东边大约235英里 ( 378公里 ), 海底地形出现很大的坡度.
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One of the most interesting projects in oceanography is the work of mapping the ocean floor.
在海洋地理学中最有趣的工程之一就是绘制海床图.
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