声波

The rapid development of the quantum vortex makes the second sound wave develop into limiting file, and make the amplitude of the rarefaction part decrease.

量子涡旋的形成与发展使第二声波形成热动激波，并使冷却波的波幅减小；同时测量了不同热流密度下的热动激波的马赫数。

Unlike available raticide throwing and sound wave mouse repelling methods, which pollute and damage the life environment of human, the said method can repel mouse while protecting ecological environment. The present invention may be widely used in various areas.

采用了本发明所说的驱鼠方法和装置改变了由于用毒药、声波在驱鼠过程中对人们的生活环境造成污染和损害的状态，在可以达到有效地把老鼠驱逐在人们生活区以外又保护人们的生态环境，可以广泛地使用在各种地区。

Besides, a simulating calculation and analysis of this acoustic ray tracing algorithm in model temperature was given.

仿真结果表明，温度梯度场中的声波路径发生了明显的弯曲，并且由高温区域向低温区域弯曲。

On the basis of investigating the sound field of a plane piston transducer and the relations between sound field and radiation force, by settling four plane piston transducers driven at the same frequency at each corner of a regular triangular pyramid with their sound-beam axes crossing at the center of the pyramid, this technique uses ultrasonic wave synthetic theory to acquire a three-dimensional ultrasonic standing wave field. The micro-component can be captured, transported, released in the range of space by adjusting the phase of the transducers.

在研究单个圆形平面活塞换能器声场分布以及声场和辐射力关系的基础上，将以相同频率驱动的4个平面活塞换能器呈正四面体放置，利用声波合成原理获得三维超声驻波场，通过调整各个换能器发射信号相位之间的关系实现对微构件在空间范围内的俘获、移动、释放等操纵。

Surface acoustic wave should be carried out to determine the output surface and the relative depth of pump suction.

应进行声波液面测定，确定产液面与泵吸入口的相对深度。

The log data of Samandepe gas field in the Amu Darya Right Bank of Turkmenistan are old in logging suites, limited and inconsistent in logging items between early exploratory wells and later development wells. Based on the correlation of different log data, the suitable log data are selected from the available logging suites to build up a mathematical statistical model of artificial fitting acoustic curve. The non-linear correction of neutron and gamma ray data was performed to ensure the relative rationality and uniformity of log interpretation.

针对土库曼斯坦阿姆河右岸萨曼杰佩气田测井资料存在系列老、项目少、早期探井和后期开发井测井项目不统一的现状，通过不同测井资料问的相关分析，合理选用已有测井系列的测井资料，建立人工拟合声波曲线的统计数学模型；通过对中子伽马资料进行非线性校正，保证了测井解释评价资料的相对合理和统一。

However, scientists say similarities in what they called resonant frequency were found through sound tests.

然而科学家称，通过声波测试，它们声音的共振频率很相似。

By slightly increasing the separation of the two plates in the middle,a double-crystal structure forms,which allows acoustic waves to resonantly tunnel through it,with transmission peaks observed inside the band gaps.

处于带隙频率范围内的声波或者弹性波将被禁止在声子晶体中传播。

How listeners are able to detect and identify individual sound sources in noisy, reverberant environments is one of the most intriguing questions in auditory perception.

在早期感觉加工阶段所进行的心理物理和ERP的研究均表明，听觉系统对声波精细结构存储的初始听觉"记忆"是一个随时间而衰减的动态变化过程，该过程受到声音频率和双耳延迟的影响。

All these results suggest that the ability to temporally maintain fine structure details contributes to perceptual integration of correlated leading and lagging sounds, which in turn, contributes to releasing speech from informational masking in noisy, reverberant environments.

因此，在嘈杂混响环境下，听觉系统需要对声波的精细结构进行存储以便对直达声和反射声进行有效的知觉整合，带来各种线索帮助听者在知觉层次上对目标声音和干扰声音进行分离，从而提高对目标声音的探测和识别，达到去掩蔽的作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。