Scientists are uncovering the secrets of twin port cities lost under the waters of the Mediterranean sea, a researcher said recently.

一名研究人员近日透露说，科学家正在揭开出两座港口城市消失在地中海水下的谜底。

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The 2080 features bass-reflex tuning through twin port tubes providing optimal low-frequency tuning, enhancing the already substantial bass output from this high quality enclosure.

在2080功能低音反射通过双端口提供最佳的低频率调谐管调整，提高从这个高品质的外壳已经大幅低音输出。

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Philippe Petit, the French acrobat who in 1974 walked across a tightrope between the twin towers, wasn't on the payroll of the Port Authority, but in retrospect he probably should have been.

1974年，法国杂技大师菲利普·珀蒂，走完了世贸双塔间架起的钢索，他并不受雇于港务局，但他大有可能被回想起。

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The twin port is currently handling more freight than ever, with business at Long Beach, the bigger of the two, 20% higher this September than last.

ECONOMIST: Logistics

The bass reflex port is optimally positioned to ensure the twin woofers drive accurately and with synchronous timing, controlling back radiation and to help eliminate sound distortion.

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The dead include 343 firefighters, 23 New York police officers and 37 officers for the Port Authority, the transportation agency that owned the Trade Center complex -- the twin towers and five smaller buildings.

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