Data from a later mission indicates significant concentrations of hydrogen and by inference water less than a meter underground at both poles.

从后来的任务中得到的数据显示，在两极地下不到一米的地方有浓度相当高的氢，由此推断是水。

youdao

This shift is due to both improved safety standards and technology as well a move away from underground mines towards surface mining and controversial mountaintop-removal mining.

这种数据上的提高在于安全标准的提升和技术的进步，同时，地表开采和富有争议性的削山开采也使得地下开采也逐渐走到地上。

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Unlike many others, Yumiko discovered Robert Williams (Juxtapoz founder and underground art legend) at a young age, and began to foster an aesthetic that weaved together pieces of both cultures.

与众不同的是，由美子小时候就接触了罗伯特·威廉姆斯的作品（Juxtapoz杂志的创立者和地下艺术的传奇人物），开始孕育出一种交织融汇两钟文化的审美趣味。

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"At least one of the bombers detonated in the deepest part of the underground which made it hugely difficult both to undertake rescue operations and to carry out the forensic examination of the site which needed to take place."

VOA: standard.2010.04.01

In reality, the bathtub was built both underground and underwater.

FORBES: The Bathtub. Lower Manhattan's Wall Against Water.

The system consists of sensors fitted on cables throughout the network, both overhead and underground, measuring current and conductor temperature.

FORBES: GE Gobbles Up More of the Smart Grid

At the same time, they built an entirely new building behind the palace, and the hotel occupies both edifices, which are connected both by an underground passage and a private walled park-like plaza.

FORBES: Hotels I Love: Palatial Luxury In The "Paris of South America"