共振板

Based on the acoustic absorption theory of microperforated panel and by the means of the theoretical analysis and emulation, the paper focuses on the acoustic characteristic including acoustic impedance, frequency and acoustic absorption coefficient of microperrforated panel working in the combustion chamber which has high temperature and great temperature gradient.

摘要根据微穿孔板吸声理论，采用理论分析和仿真的方法，着重讨论微穿孔板在温度梯度下的声阻抗、共振频率和吸声系数等声学特性，分析其受温度影响变化的机理。

The method of multiple scales was used to solve the Duffing equation, the solutions were used to analyze qualitatively the effect of boundary conditions, ratio of damp, external excitation, and ratio of inner radius to outer radius on the second-harmonic resonance of an annular thin plate.

用多尺度方法求此振动控制方程的3次超谐共振解和1/3亚谐共振解，并且定性地探讨边界条件、内外半径比、激振力和阻尼对环形薄圆板在这两种次谐共振下的动态响应。

In building products, Wadia places strong emphasis on key design and engineering factors such as sophisticated circuit board design (the top products incorporate 6-layer boards), advanced power supply regulation, ground plane optimization, RFI rejection shielding, advanced surface-mount technology, and control of resonances and microphonics in chassis and boards.

在建设产品，瓦迪亚地方十分重视的关键设计和工程因素，如先进的电路板设计（顶端产品采用6层板），先进的电源管理，接地平面优化，射频干扰的屏蔽拒绝，先进的表面贴装技术，和控制共振和微在底盘和董事会。

The optimization of the length and position of a regenerator as well as the size of the resonator were studied numerically.

对热声板叠的长度、热声板叠在共振管中的位置以及共振腔的几何大小对热声振荡振幅的影响进行了数值计算。

The evolution process of self-excited thermoacoustic oscillation in a standing wave tube with a resonator was simulated successfully.

对热声板叠的长度、热声板叠在共振管中的位置以及共振腔的几何大小对热声振荡振幅的影响进行了数值计算。

MPPs are typically made of a thin metal or plastic panel. However, thin limp panels are generall not suitable as an interiornish of room walls because they do not have sucient strength, which prevent spractica lapplication of MPPs as an interiornish of roomwalls.

典型的微穿孔板为孔径与板厚均小于1mm的金属或塑料板，这些极薄的板材因其强度低，通常不适用于民用，也因此使微穿孔板这一良好的吸声共振结构的应用范围受到局限。

The design features of FGD duct are as follows: large stiffness of flue gas duct, application of reinforced ribs and internally supported bridge structure, installation of leading plate, prevention of internal overarm support reso.

该烟气脱硫工程烟道的设计特点是：烟道的刚性较大；采用了加固肋及内撑桁架；设置了导流板；防止了内撑杆共振；考虑了支吊架及热膨胀的问题；烟道的焊接作了特殊要求；设置了人孔门和烟道疏水等。

In an attempt to ensure that cabinet resonance would not cause problems,the side panels had each been damped with a bituminized pad,and the top and bottom panels likewise,except that two layers were required here.

为了确保音箱的共振不会引起问题，两面侧板都以沥青垫增加其阻尼，上下箱板也做相同的处理，但更铺上两层。

We find that the localized waveguide transmission peak redshifts and becomes broader along with the layer distance D increasing.

本工作发现随着板间距D 的增大，局域波导共振峰发生红移，同时峰的宽度明显变宽。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。