谐振

The influence of mean pressure of gas,frequency and length of resonance tube on the overall performance are measured and analyzed.

测量和分析了气体充气压力、频率以及谐振管长度对系统整个性能的影响，获得了最大为 31W的声能输出。

The results are useful for actual designing of resonance tube igniters of liquid rocket engines and can be used as typical data for verifying correctness of numerical simulation.

实验结果有助于液体火箭发动机谐振管点火器的实际设计，而且可以用来检验数值模拟的正确性。

In this paper it is believed that the onset process is from the unorderly sound waves generated by heated gases, through ordering the sound waves, regenerator onset in a high natural frequency, followed by steady oscillation whose frequency is controlled by resonance tube.

本文认为热声热机的起振过程是从气体被加热产生杂乱的声波开始，经过声波的规则化先从回热器的高频率自激振荡振动，继而扩展到以谐振管内气体固有频率为主导的整个系统的稳态起振。

And with 2.8 MPa working pressure, 2500 W heating power, 7 meters resonance tube length, the thermoacoustically driven pulse tube cooler has reached 80.9 K refrigeration temperature at 45 Hz.

系统在谐振直路总长度为7米，工作压力为2.7MPa，加热功率为2350W，工作频率为45Hz时得到80.9K的最低制冷温度。

Designing and founding the thermoacoustic test-bed. The structure and dimension of condenser, heater, ejector, regenerator, sound room, feedback loop, resonance forthright and pulse tube refrigerator are showed detailed.

设计并搭建了热声驱动的脉管制冷系统试验台，对系统中的冷却器、加热器、喷射泵、回热器、声容、反馈回路、谐振直路及脉管制冷机等的结构尺寸做了详细介绍。

The topic of this paper is to measure the low waste materials so the resonance method is employed.

本文要研究的是低损耗材料的测量，所以采用谐振法。

Therefore it should be no problem to achieve the recommended values of resonance resistance.

因此，应该没有问题，以实现谐振电阻的推荐值。

Hardware construction of system.design of antenna and influence of parametersofantenna on resonant frequency are studied in the paper.

文中主要研究了系统的硬件构成、天线的设计和天线参数对谐振频率的影响。

Hardware construction of system.design of antenna and influence of parameters ofantenna on resonant frequency are studied in the paper.

文中主要研究了系统的硬件构成、天线的设计和天线参数对谐振频率的影响。

This gives me a selection of resonant frequency ranges.

这样我可以选择谐振频率范围。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。