消振

Call, therefore, the Achaean heroes in assembly; unsay your anger against Agamemnon; arm at once, and fight with might and main.

去吧，把阿开亚勇士催喊招聚，消弃你对兵士的牧者阿伽门农的愤恨，振发你的勇力，马上披甲战斗！

Attar, which is called "golden liquid" in domestic and overseas market, has sweet aroma of rose, The product has multiple curative effect including psychological curative effect: preventing hypochondria, alleviate nervous, chirk up; body curative effect: helping systemic circulation, shrinking blood capillary, preventing veinlet burst, diminishing inflammation to cholecystitis, conjunctivitis, ophthalmia.

玫瑰油——在国内外市场上素有"液体黄金"之称，具有甜的玫瑰花香气。心灵疗效：具有抗忧郁、神经紧张，提振精神，使人兴奋等。身体疗效：协助体循环，能收缩微血管，所以是小静脉破裂的神奇之宝。对胆囊炎、结膜炎、眼炎有消炎作用，能刺激胆汁分泌，清血、利脾、健胃、补身、止呕吐。

Corrects for inherent instrument polarization to allow accurate measurements of birefringent samples.

通用的消偏器，消除仪器固有的偏振性能，对于具有双折射性能的样品具有更高的精度。

Depolarizer plays an important role in realizing Raman pump source with low degree of polarization and in solving the problem of polarization dependent gain.

消偏器在实现低偏度喇曼泵浦源、解决喇曼放大器偏振相关增益问题中有重要的作用。

Normal friction damper is a type of energy dissipation device in civil engineering, and has the good ability of energy dissipation.

普通摩擦阻尼器是工程结构中常用的一种消能减振装置，具有良好的耗能能力。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

Damping ratio ; design of structure with energy dissipation devices ; complex mode method ; forcing decoupling method ; equivalent damping method

阻尼比；消能减震结构设计；复模态设计方法；强解耦振型分解法；等效阻尼法

This paper presents natural vibration experiment and sine excitation experiment of the frame with different energy dissipation braces （the little character brace or the unidirectional diagonal brace or the little- character-toggle-brace）and compared their capability of energy dissipation.

介绍了空框架以及附加单向斜撑、小八字撑以及小八字曲拐撑的4种结构的自由振动试验以及正弦稳态激振试验，比较了其消能能力。

According to thin film polarization effect and eigenmatrix,the Fresnel retarder s achromatic width is expanded by evaporating dielectric membrane in two total-reflection surfaces of the rhomb.

根据薄膜的偏振效应，从薄膜的特征矩阵出发，通过在菱体的两个全反射面蒸镀光学介质膜的方法拓宽了菲涅耳菱体型相位延迟的消色差宽度。

At the same time, the control and operation of air conditioning systems, fire and smoke extraction system and the system features the silent and Jianzhen in the simple design.

同时，对空调系统的控制与运行，防火排烟和排风系统以及系统的消声及减振等方面进行了简单的设计。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。