Dr Parsons said data from the research will also be important for oil companies looking to drill in areas where these rivers exist.

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。

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But Dr Atherton said the designers found that just reducing the noise of the drill, by putting on ear defenders for example, was not enough.

但是阿瑟顿博士表示，设计人员发现仅仅通过带上耳朵防护罩或其他方法减少噪音是不够的。

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