sea-floor spreading

常見例句

The continental drift theory and sea-floor spreading theory.
大陸漂移和海底擴(kuò)張。
The idea of sea-floor spreading actually preceded the theory of plate tectonics.
海牀擴(kuò)展說實(shí)際上早於板塊結(jié)搆理論。
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(gè)力學(xué)模型計(jì)算的力矢量展佈於地球表麪，可以非常直觀地顯示大陸漂移和海底擴(kuò)張?jiān)谶@些力的作用下如何進(jìn)行運(yùn)動(dòng)。