查询词典 acoustic

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。

The network-torpedo can realize real time identification, pursuit and attack on target with the information obtained effectively from battlefield at any time. We put emphasis on the functions and principles of several key technologies, including acoustic communication system, satellite navigation location system and power system. Finally, we propose some applied ideas for the network-torpedo.

展示了网络鱼雷以其能随时高效获取战场环境信息来实现对目标的实时识别、跟踪和攻击，并着重从功能及原理上对水声通信系统、卫星导航定位系统及动力系统这几项关键技术进行了较详细的论述，最后提出了网络鱼雷的作战应用设想，展望了其应用前景。

The navigation marks as referred to in the present Regulations are navigation-assisting installations used for location of vessels, navigation of vessels and other special purposes, and include visual navigation marks, radio navigation facilities and acoustic navigation marks.

第二条 本条例适用于在中华人民共和国的领域及管辖的其他海域设置的航标。本条例所称航标，是指供船舶定位、导航或者用于其他专用目的的助航设施，包括视觉航标、无线电导航设施和音响航标。

Third, stage film and television modelling:Main body aluminum system frame modelling, theater curtain, hanging lamp, acoustic support frame, navigation hollow box and special-purpose active work table.

舞台影视造型：主体铝制框架造型，幕布、吊灯、音响支撑框架，航空箱及专用活动工作台。

Theoretical analysis and calculation on the acoustic properties of perforated panel absorber were described herein.

文章对穿孔板背面紧贴吸声薄层时的声学特性进行了理论分析与计算，并与实验结果作出比较。

Based on the theoretical and experimental studies in electrical and mechanical parameters, micro-perforated absorption material in the box, and positions optimization of the actuators and attached masses on the panel, several optimization methods for the acoustic performance of panel speaker are proposed.

基于对平板扬声器电－力参数测量、箱体内衬微穿孔吸声材料、驱动器以及附加质量位置优化的理论研究和实验测试，提出了若干种提高平板扬声器声性能的方法。

The paper also highlights the design and implementation of "Testing Panel for Digital Acoustic Well Logging Device" platform, which integrates the designed Manchester encoder and decoder Soft-IP cores.

论文还介绍了应用IP软核集成技术的"数字声波井下仪检测面板"的设计与实现。

The amplitude of the surface velocity of the panel and the acoustic pressure on the porous surface are reduced largely in the vicinity of structural resonances due to the additional radiation damping and visco-thermal absorption phenomenon in the porous layer.

请注意振膜表面速度分布的两种极端情况。一种极端情况产生在作活塞运动的刚性表面中，此时整个表面的振幅和相位是处处相等的。

Installation methods: direct use glue to bond the peak wave sound acoustic panel to the wall or skeletons and other objection need to install sound-absorbing panels objects together.

安装方法：直接用胶水将波峰吸音海绵与墙体或龙骨架及其它需要安装吸音板物体粘合在一起。

Using transfer matrix method to analyze microperforated panel absorber s acoustic characteristic;2. The possibility and the significance of replacing fibred absorption materials by fibreless materials,especially by microperforated panels,are discussed.

简要地介绍了吸声材料的基本特点，阐述了无纤维性吸声材料（特别是微穿孔板吸声结构）取代传统的纤维性吸声材料的可能性及其重要意义，较详细地介绍了近年来德国以及我国科研人员在无纤维吸声材料研究上所取得的进展。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。