常見例句雙語例句The continental drift theory and sea-floor spreading theory.大陸漂移和海底擴張。The idea of sea-floor spreading actually preceded the theory of plate tectonics.海床 擴展說實際上早于板塊結(jié)構(gòu)理論。Spreading out these force vectors of mechanics model on the earth's surface , it can be directly seen how the continental drifting and sea- floor spreading are in motion affected by these forces .把這個力學(xué)模型計算的力矢量展布于地球表面，可以非常直觀地顯示大陸漂移和海底擴張在這些力的作用下如何進行運動。 返回 sea-floor spreading