A passenger to accept South Korea YTN TV connection, when she heard a loud noise, then ships the stop.
一名乘客接受韩国YTN电视台连线时称，事发时听到一声巨响，然后船只停止前行。
In the designing and building of modern ships, more and more considerations have been given to the problems of vibration, shock and noise control.
在现代船舶的设计与建造中，振动、冲击与噪声控制的问题已越来越受到人们的高度重视。
The spectrum of radiated noise from ships consists of a continuous broadband spectrum and a discrete narrow-band line-spectrum.
船舶辐射噪声的功率谱由连续的宽带谱和离散窄带线谱组成。
This article brings together the noise data of part of our inland ships, introduces the permissible standard of ship noise abroad, and tells of the various methods of controlling ship noise.
本文收集了我国部分内河船舶噪声状况的资料，介绍了图外船舶噪声许用标准，并对船舶噪声的各种控制方法作了较详尽的介绍。
Therefore, bispectrum is used to extract the non gaussian ingredients from the noise signals of ships.
由此可利用信号双谱，提取舰船辐射噪声信号的非高斯成份。
It is very important to study methods for predicting propeller cavitation and induced fluctuations in order to reduce vibrations and noise on ships.
研究螺旋桨空泡及其诱导的船体脉动压力的预报方法，对于减小其引起的船尾振动和辐射噪声是极其重要的。
This method can be applied to different kinds of low noise ships such as physical exploration ships, cruise liners and train ferries.
该方法可适用于各种低噪声船舶的设计中，如物探船、游船、火车渡船等。
First, the generation mechanism, components and frequency characteristic of radiated noise of naval ships are studied. There exists periodical modulation for the amplitude of propeller noise.
首先讨论了舰船辐射噪声的产生机理、构成和频率特性，指出螺旋桨噪声的振幅存在周期性调制。
Results showed that the research under the concept of the acoustic mode is significant in the efforts of reducing the noise level of ships.
结果表明，研究结构在声辐射模态概念下的噪声特性是船舶降噪研究中的一条新途径。
To better forecast and control the structural vibration and noise of naval vessels and other kind of ships, the energy finite element method was introduced.
为了解决舰船结构的振动噪声预报及其控制问题，以能量密度为变量，获得了薄板结构受激励产生弯曲振动时的能量密度控制方程，并得到了控制方程的有限元解。
With Hilbert transform, the envelop spectrum of the signals radiated from ships was obtained. The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum.
利用希尔伯特变换求舰船噪声的包络谱，对舰船噪声的包络信号进行分析，并提取了四个特征量。
Patrol ships monitored the noise made by submarines in the vicinity.
巡逻船只监测附近潜水艇所发出的声音。
Patrol ships monitored the noise made by submarines in the vicinity.
巡逻船只监测附近潜水艇所发出的声音。
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