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- The ocean bottom is made up of smooth plains. 洋底由平坦的平原构成。
- Because the ocean surface is so smooth, people may think that the ocean bottom is made up of smooth plains. 由于大洋表面很平坦，人们可能会认为大洋的底部是由平坦的平原构成的。
- Many high-gain stations will be deployed on land and ocean bottom. 在陆地和洋底要设置许多高增益的台站。
- In recent years, ocean bottom seismic (OBS) develops quickly. 摘要近几年，OBS（海底地震仪）勘探技术得到了较大的发展和完善。
- People many think that the ocean bottom is made up of smooth plains. 人们可能会认为,大洋的底部是由平坦的平原构成的。
- We sometimes tend to think that the ocean bottom is made up of smooth plains. 我们往往误以为海底也由平坦的平原构成。
- Because the ocean surface is so smooth,we sometimes tend to think that the ocean bottom is made up of smooth plains. 由于洋面很平坦，我们往往以为洋底也由平坦的平原构成。
- Uplift or depression of the earth's crust, affecting large areas of land or ocean bottom. 造陆作用对大面积地和海底产生影响的地壳的升起或下陷
- Because the ocean surface is so smooth,people may think that the ocean bottom is made up of smooth plains. 由于大洋表面很平坦，人们可能会认为大洋的底部是由平坦的平原构成的。
- The total volume of sediments carpeting the ocean bottom has turned out to be surprisingly small. 覆盖海底的沉积物的总体积显得惊人地微小。
- Found worldwide, polychaetes are important for turning over sediment on the ocean bottom. 遍布全世界，多毛类在翻转海底沈积物方面有重要作用。
- Of the tens of thousands of ships on the ocean bottom, only a handful, less than 1 percent, contain negotiable treasure, such as gold and jewels. 在数以万计的海底沉船中，只有极少数，不到百分之一的沉船上有可流通的财富，如黄金和珠宝。
- In the simple case just discussed, the ocean bottom was sloping uniformly away from the beach; obviously, this is not always the case. 在刚讨论过的简单例子中,海洋均匀地从海滩向外倾斜;很明显,情况并非总是如此。
- A video, for example, shows organisms that live near the ocean bottom where volcanic activity heats the water to hundreds of degrees. 例如，录像显示一些有机体生活在海洋底、火山火力将那里的水温加热至几百度附近。
- In the past few decades the elastic properties of ocean bottom were usually ignored to simplify problems by assuming a fluid seabed. 过去为了简化问题，常将底床的弹性特质忽略而视同流体，因此并未将剪力波的效应考虑在内；
- And as the ice retreats northward, the water beneath it gets deeper, making it harder for walruses to reach the ocean bottom where they feed. 且由于冰层向北退去，冰层下的水域变得更深，从而使海象更难到达它们进食的洋底。
- It erases the water bottom multiples from the record, but also any undesired energy. 尤其在海底地形崎岖地区，本方法较其他传统复反射摘除方法更能有效地消除海底复反射。
- But the lowest summer ice cap on record put sea ice far north of the outer continental shelf , the shallow , life-rich shelf of ocean bottom in the Bering and Chukchi seas. 但夏季冰冒的最低纪录是在远方北边的外围大陆棚还有海冰存在。大陆棚是在白令海峡和处克其海峡，又浅又充满生物的海底。
- But the lowest summer ice cap on record put sea ice far north of the outer continental shelf, the shallow, life-rich shelf of ocean bottom in the Bering and Chukchi seas. 但今年夏天北极冰帽面积缩小至历史最低记录，使海冰推移至白令海和楚科奇海一带底栖生物丰富的浅大陆架外围的远北地区。
- The study from T-phase will provide us an independent way to study the earthquake, especially the earthquakes occurring at the ocean bottom and subduction zone region. T-波分析将为推断海洋地震以及海陆边界俯冲带附近地震的特征，提供一种独立的研究手段和方法.
