大多数水含有一些二氧化碳，使得水显弱酸性，能够侵蚀石灰岩中的碳酸钙。
Most water contains some carbon dioxide making it a weak acid that can eat away at the calcium carbonate in limestone.
大多数水含有一些二氧化碳，使得水显弱酸性，能够侵蚀石灰岩中的碳酸钙。
Most water contains some carbon dioxide, making it a weak acid that can eat away at the calcium carbonate in limestone.
通常，它发生在基板是由石灰岩，碳酸盐岩，盐层或任何其他岩石，很容易被水侵蚀形成的溪流。
Usually, it happens when the substrate is formed by limestone, carbonate rock, salt beds or any other rock that is easily eroded by water streams.
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