Methane hydrates, solid ice-like substances composed of water and natural gas (methane), occur in areas of the world's oceans where appropriate conditions of temperature and pressure cause water and methane to combine to form a solid.
甲烷水合物，是水和天然气（甲烷)组成的冰状固体，存在于世界海洋的一些地区，在那里温度和压力的条件适合，使水和甲烷结合形成固体。