Old hands cast doubt on theories that huge quantities of minerals lie below the seabed.
有经验的人怀疑海底下面有巨大矿藏的理论。
What's more, even within the areas of the WAIS that lie below sea level, there are localized spots that poke above it, and these too would be relatively safe.
再说，尽管在西南极冰原低于海平面的区域，其中也有相对安全的突起地形。
Iceland is one of the few places on Earth where active volcanoes lie below icecaps.
在地球上，冰盖之下藏有活火山的地方很少，而冰岛就是其中之一。
Purification is mainly done by adding zinc dust to the solution. As all the elements to be removed lie below zinc in the electrochemical series they can be precipitated by cementation.
净化过程主要是加入锌粉到溶液，这样所有电位序在锌之后的元素都被置换出来并且凝固沉淀下来。
Purification is mainly done by adding zinc dust to the solution. As all the elements to be removed lie below zinc in the electrochemical series they can be precipitated by cementation.
净化过程主要是加入锌粉到溶液，这样所有电位序在锌之后的元素都被置换出来并且凝固沉淀下来。
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