常見例句雙語例句Both hotspots and mid-ocean ridges are volcanic, so Iceland is doubly so.“活躍點”和海洋中間的山脊實際都是火山,所以冰島更是如此。Much of the activity between the continental shelves takes place deep underwater at the mid-ocean ridges.大部分的大陸架的活動發(fā)生在深水下的大洋洋底的海脊。This is part of the system of mid-ocean ridges that form as the tectonic plates of the Earth’s crust move apart—a process known as sea floor spreading.印度洋脊是中大洋脊的一部分,中大洋脊是地殼分離的地球板塊形成的。 這一形成過程被稱為海底擴張。權威例句Both hotspots and mid-ocean ridges are volcanic, so Iceland is doubly so.ECONOMIST: Volcanoes and air travel: Small eruption in Iceland The 返回 mid-ocean ridges