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。
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。
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。
Theoretical and experimental results suggest that the engine performance at low load can be improved with the variable swirl twin inlet port.
理论计算与试验结果证明，采用双进气道可控进气涡流系统是改善大功率柴油机低负荷性能的一个有效途径。
A passive synthetic aperture based on phase correction algorithm for solving the port-starboard discrimination problem in the non-aligned towed twin-line array sonar is described.
提出了一种基于被动合成孔径的相位校正方法，有效地解决了因为首阵元未对齐（非对称）而引起的双线阵左右舷误判问题。
A passive synthetic aperture based on phase correction algorithm for solving the port-starboard discrimination problem in the non-aligned towed twin-line array sonar is described.
提出了一种基于被动合成孔径的相位校正方法，有效地解决了因为首阵元未对齐（非对称）而引起的双线阵左右舷误判问题。
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