为什么要煞费苦心地拿板块学说和大陆漂移来进行类比？
Why this elaborate analogy with plate tectonics and continental drift?
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。
According to this theory, the continents and ocean floors are parts of about 30 plates, the largest of which are shown.
指出新的观测资料为板块构造学说和大陆动力学提供了机遇和新的挑战。
In the end new development and challenges on plate tectonics and continent dynamics provided by the new observation are pointed out.
指出新的观测资料为板块构造学说和大陆动力学提供了机遇和新的挑战。
In the end new development and challenges on plate tectonics and continent dynamics provided by the new observation are pointed out.
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