1·Over time, the tectonic plates move and shift, which moves the continents and the ocean floors too.
随着时间的推移，地壳板块移动，同时也移动了大陆和海底。
2·Less than 1% of the world's ocean floors have ever been surveyed.
只有不到1%的世界海底被探索过。
3·Actually the ocean floors are almost as irregular as the exposed land areas.
实际上洋底几乎和露出的陆地一样是高低起伏的。
4·According to this theory, the continents and ocean floors are parts of about 30 plates, the largest of which are shown.
根据这种学说，大陆和大洋底部都是约30个板块的一部分，这里显示的是其中最大的一块。
5·According to a report in Discover Magazine, Borgonie and his team may next look for nematodes in the sediments beneath ocean floors.
根据《发现杂志》的报道，Borgonie和他的团队下一步将在海底沉积物中寻找线虫。
6·But the rock is reasonably widespread, being both the underlying stuff of ocean floors and a common outpouring of terrestrial volcanoes.
但是，这种岩石还是相当广泛，因为它既是海床基本物质，也是常见的陆地火山喷发物。
7·Forests, for example, take longer to renew (42 years) than ocean floors (typically less than ten) regardless of the scale of the stresses inflicted on them.
举例而言，相比起洋底的恢复速度(通常小于十年)，森林就需要更长的时间(42年)，不管怎样规模的压力作用于其上。
8·The dry land of the continents consists mostly of granite and other light silicate minerals, while the ocean floors are made up mostly of a dark, dense volcanic rock called basalt.
陆地地壳主要由花岗岩和其它轻质硅酸盐矿物构成，而海底则主要由黑色的高密度火山岩——玄武岩构成。
9·So evenduring the ice ages, life continued to thrive on lake floors and in thedeep ocean.
因此，即使在冰河期，湖面和深海的生命体也得以延续。
10·Furthermore, the house's close proximity to the ocean influenced the use of limestone floors, oak joinery and zinc cladding.
此外，这座邻近海洋的住宅影响了石灰石地板、橡木木工和锌覆盖层的使用。