单词seafloor spreading
网络: 海底扩张学说；海洋板块拓展；海底扩张理论
Evidence of Continental Drift and Seafloor spreading ; Plate Boundaries ; Additional Supporting Evidence For Plate Tectonics.
大陆漂移和海底扩张的证据；板块边界；板块构造的附加证据。
The plate tectonic theory reveals the seafloor spreading and plate lateral movement, and illustrates magmatism related to plate boundaries.
板块构造学说揭示了海底扩张和板块的水平运动现象，阐明了与板块边界相联系的岩浆活动。