- 洋中脊 yángzhōngjǐ mid-ocean ridgean underwater mountain system formed by plate tectonics in the middle of an ocean
- 大洋中脊 dàyángzhōngjǐ mid-ocean ridgemid-ocean ridge; an underwater mountain range formed by plate tectonics
- 大西洋中脊 dàxīyángzhōngjǐ Mid-Atlantic Ridgethe mid-ocean ridge located along the floor of the Atlantic Ocean
- 大西洋洋中脊 dàxīyángyángzhōngjǐ Mid-Atlantic RidgeThe Mid-Atlantic Ridge, a mid-ocean ridge located along the floor of the Atlantic Ocean
