查询词典 underwater

DOA finding of underwater short-range target is one of the key techniques for underwater weapons including sonar, homing torpedo and mobile mine. Weapon"s tracking ability and exploding damage to target can be increased by precision detection of target"s azimuth and elevation.

水下近程目标方位估计是包括声纳、鱼雷、自航水雷在内的水下战术武器重要的技术环节之一，精确定位目标方位对于提高武器跟踪能力和战斗部的打击效果具有十分重要的意义。

According to the application background of the 7000 m manned underwater vehicle and with monocular CCD cameras as sensors, two visual station keeping methods for underwater vehicle are proposed, i.e. the model-based monocular vision positioning for the target when model is known, and the feature-based visual servoing for the target when model is unknown.

以7000m载人潜水器的水下悬停为应用背景，以单目CCD摄像机为传感器，提出了基于模型的单目视觉定位和基于特征的视觉伺服两种水下机器人视觉悬停技术方案，分别适用于已知模型的观察目标和未知模型的观察目标两种情况。

To prove the system can be used in underwater acousto-optic communications, with this system, the acoustic frequency and intensity of underwater sound source are detected.

为了证明系统能够应用于水下声光通信，进行了对水下声源发出的声波频率和强度的探测实验。

Quite right, there are many kinds of paint, and some are suitable for above-water use, and some are for underwater.

是的，有很多种油漆，有的适合于船体水上部分，有的适合于水下部分。

Such oceanic growth can be removed similarly by divers underwater or by normal above-water waterjetting should the ship be drawn onto a dry dock.

可以用高压枪在船坞清除，但如不要将船拖到船坞上清洗，亦可用无后挫力水枪，利用潜水人，进行水下清除。

The database such as the vessel database, navigation aids facility database, hydro-meteorological information database and the database of the port facility and above–water facility in the area of responsibility are set up that the MSA can realize the vessels entering or leaving port management, above-water and underwater construction management, navigation alarm and announcement publishing, above water dangerous condition, accident , water area pollution , and vessel alarm monitoring in the area of responsibility, as well as master the circumstances in the water area of the accident and dangerous conditions and the dynamic positions of the navigation vessels.

建立了船舶数据库、助航设施数据库、水文气象数据库、港口设施、辖区水上设施数据库。实现海事局对船舶进出港管理、水上水下施工管理、发布航行警告、航行通告、监控辖区水上险情、交通事故、水域污染、船舶报警，掌握事故、险情水域情况以及有关巡航船舶位置动态。

Navigation using acoustic range measurement is one of the most important techneques of underwater robot, becoming a research hotspot.

中文摘要基于水声测距的导航定位技术在水下机器人中获得广泛应用，并成为现今水下机器人技术的研究热点。

Usually, there are three available accesses for location underwater, inertial navigation, dead reckoning navigation, acoustic tracking location.

从目前来看，应用于水下导航的方法主要有：惯性导航、船位推算导航、水声定位系统等方法。

No doubt, the more the information, the better the processing effect will be. The technology of acoustic pressure and particle velocity combined processing is expected to bring new life to the developments of signal processing of underwater acoustics and sonar technology, which is the main content of this thesis.

更多的信息量必然带来更好的处理效果，基于组合传感器的声压、振速联合处理技术有望给水声信号处理和声呐技术的发展带来新的活力，这正是本论文的主要研究内容。

Torpedo ; underwater acoustic imaging ; complex array ; azimuth resolution

鱼雷； 水下声成像；复合阵；方位分辨率

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？