2、

The method of computational fluid dynamics ( CFD) and test has been used to study the fluid dynamics and acoustic performances of resistance muffler.

本论文用计算流体动力学(CFD)和试验法研究抗性消声器的流体动力学特性和消声特性。

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3、

The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.

利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。

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4、

A standing wave thermoacoustic engine connected with an RC ( acoustic resistance and acoustic capacitance) load was simulated with linear thermoacoustics to study the influence of load impedance on the performance of the thermoacoustic engine.

为了探索负载的阻抗特性对热声发动机性能的影响,利用线性热声理论,对驻波型热声发动机驱动阻容负载进行了数值模拟。

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5、

When the acoustic resistance of the load is fixed, oscillating frequency, heating temperature and input power to RC load will increase along with the increase of the length of the pressure amplifier in a certain range.

在负载的声阻固定的情况下,一定范围内振动频率、加热温度、负载入口声功随着压力放大器长度的增大而增大;

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6、

On the linear acoustic resistance of an orifice in an infinite thin plate

关于无限薄平板中圆孔的线性声阻

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7、

Equivalent Specific Acoustic Resistance of Sound Absorbing Materials

吸声材料的当量声阻率

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8、

Opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component.

声音在通过一个表面时受到的阻力;声阻是声阻抗的实部,声抗是声阻抗的虚部。

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9、

The Sensitivity of Adaxial and Abaxial Stomatal Resistance in Wheat Leaf to Soil Water Stress

冬小麦近轴和远轴叶面气孔对土壤水分胁迫反应的敏感性

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10、

The research on MU aerodynamics plays an important role on reducing aerodynamic resistance, enhancing aerodynamic performance, saving energy and saving transportation cost.

动车组空气动力学的研究对于降低动车组的气动阻力、提高它的气动性能、节省动力能源、降低运输成本都具有极其重要的作用。

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12、

Thermal conductivity was enhanced for reducing the contact thermal resistance.

实验采用了减少接触热阻的方法来提高热的传导.

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13、

The effect of laser welding or pulsed tungsten argon arc welding on the corrosion resistance of titanium

激光焊和脉冲氩焊对钛耐腐蚀性的影响

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14、

Research on application pulverizing resistance rate to contrast hardness of softened areca nut hull

抗粉碎度比较评价软化槟榔壳硬度的研究

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15、

Using MatLab software for deducing safety factor of point shearing resistance on the arch abutment space

利用MatLab软件推导拱座空间点抗剪安全系数

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16、

Temporal Analysis of Earthquake Resistance Calculation for Aqueduct Structure

渡槽结构抗震计算时程分析方法

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17、

The linearity between the electrical resistance change and the applied load was good for the carbon fiber reinforced cement based material.

碳纤维水泥基材料的电阻变化与所受荷载呈良好的线形关系;

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18、

Elastic recovery means that when the applied load is released, the piece returns to its original shape. test method to prove the resistance to initial ring deflection

弹性回复是指当样品所受应力撤销后,其完全回复到初始形状的现象。检验初始环状变形可能性的方法

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19、

Selection of appliable plants for air pollution resistance in Foshan

佛山市抗大气污染应用植物的选择

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20、

Identification method of resistance of Vitis evaluated to grape anthracnose and grape white rot

葡萄白腐病和黑痘病抗性鉴定方法

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