The levelness may be due to the subduction of a submarine mountain range known as the Juan Fernández Ridge.

板块的水平程度可能取决于一个被称为胡安 · 费尔南德斯脊的海底山脉的俯冲作用。

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Upward-fining channels may occur in a wide range of environments from submarine canyon to alluvial fan.

向上变细的水道可以出现在好多种环境中，从海底峡谷到冲积扇。

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The F is used for short range anti-submarine purpose around the carrier and depends on its own AQS-13F suspensory sonar to detect the submarine.

型则用于航母周围的短距反潜，主要依赖其AQS-13F悬吊声纳探测雷达。

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Last year, much to America's embarrassment, a newly developed Chinese diesel submarine for shorter-range missions surfaced close to the American carrier Kitty Hawk near Okinawa without being detected beforehand.

ECONOMIST: China's military might

China has started to construct a new submarine to carry longer-range missiles with warheads based on the design of the Trident W88.

CENTERFORSECURITYPOLICY: Summary of the Center for Security Policy��s High-l

The acquisition of MIRV and solid fuel technologies, the deployment of increasingly longer-range mobile missiles, the development of neutron warheads, all indicate a broad-based, and well-financed nuclear modernization program....China has started to construct a new submarine to carry longer-range missiles with warheads based on the design of the Trident W88.

CENTERFORSECURITYPOLICY: Summary of the Center for Security Policy's High-l