A CSAC clock continues to function when GPS signals are blocked, making it incredibly useful deep underground or underwater.

这样芯片大小的原子钟即使在全球定位系统被阻断的情况下也能继续使用，如此这般，原子表在深入地下或水中时尤其有用。

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For another thing, the experiments suggest aragonite allows the chitons to see equally well in air or underwater, something that's probably useful as tides ebb around the mollusks.

另外，实验还显示，碳酸钙眼睛允许石鳖在水中和空气中达到相同的视力，这可能有助于它们适应潮汐变化。

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The skull is cetacean-like but its jawbones lack the enlarged space that is filled with fat or oil and used for receiving underwater sound in modern whales.

它的头骨与鲸类相似，但它的下颚骨没有现代鲸鱼用来接收水下声音的、充满脂肪或油脂的扩充空间。

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Sick or dying coral affects the entire ecosystem of this special underwater area.

VOA: special.2009.04.22

Other causes are landslides and underwater or nuclear explosions at sea.

VOA: special.2009.03.17

At first, we only looked at homes that were not bank-owned or underwater but options in my price range were limited.

FORBES: Buying a First House in the Midst of a Financial Crisis

Outfitted with an easy-to-access button, the camera enables users to switch from normal photo mode to snow or underwater mode, even with gloves on.

ENGADGET: blogger-avatar

Current applications for Superbot are being developed with space exploration in mind, but Shen said the technology could be usefully applied in any environment dangerous to humans such as for search and rescue tasks in mines or underwater -- although the laboratory is still working on a morphing robot capable of swimming.

CNN: Robotics discovers its soft side