CD盘可以储存大量数据，这对于文献资料的存储非常有用，如存储一部百科全书。
CD disks can store huge volumes of data and are very useful for reference material an encyclopedia, for example.
下面列出了一些非常有用的参考资料和资源。
The following is a list of some useful references and resources.
帕森斯博士表示，这些研究资料对石油公司也会非常有用，如果他们想在有暗河存在的地区钻探油井的话。
Dr Parsons said data from the research will also be important for oil companies looking to drill in areas where these rivers exist.
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