声波

This article analyzes the phase diagram of 4 He and λ phase transition of liquid 4 He. Discusses the sorts of the phase transition with vavious temperature and pressure. Indicates the fundamental cause about liquid 4 He named after quantum liquid.

分析了4He的相图和液体4He的λ相变，讨论了在不同的温度和压强下相变的类型，指出了液体4He被称为量子液体的基本原因，介绍了HeⅠ的基本特性，如粘滞系数、热导率，对声波的吸收系数，以及凝聚气体模型。

The whale looks for food using sound waves.

鲸鱼通过声波寻找食物。

Since the human body and organs in the body can be seen as more focused, more flexible point of vibration whose vibration inherent in the frequency infrasound vibrations, so infrasound have a stronger effect on the human body.

人体和体内器官固有振动频率均在次声震动范围内，次声波对人体有较强的作用效果。

When sound waves enter the cochlea,which is really a tube coiled around,they set a membrane into a back and forth motion and cause a new wave.

当声波进入耳蜗这条盘旋的管道，它令薄膜前后移动并且产生新的波动。

This simple and painless test uses sound waves to create a picture of the inside of the body.

这种简单而且无痛的检查是通过声波信号来建立一个身体内部的结构图。

Xiang Zhang and his colleagues at the University of California, Berkeley, used 36 precisely machined brass fins to create just such a lens for sound waves.

加利福尼亚周伯克利市大学的张翔以及他的同事用36片经精密加工的黄铜扇叶制作了这样的声波透镜。

Exposing such a lens to high-frequency sound waves breaks it up into an emulsion that can then be sucked out of the eyeball.

将这样一个晶体暴露到高频声波下，将使它破碎并变成乳液，然后被吸出眼球。

With the mechanism for delivering sonic signatures of virtual speakers established, they must be recreated in their totality for the listener to experience the sound as the director or artist intended.

与签名机制提供虚拟声波发言成立他们必须再创造他们的全部录音，同时汲取经验的董事或艺术家的打算。

Based on exchange principle, by using self-developed software,the compensation sound wave logging can be realized with the results from single-emission and double-receiving logging equipment the same as that from double-emission and double-receiving.

对老式的单发双收煤田测井仪，利用互换原理，通过自行开发编制的软件，以实现与双发双收效果相同，结果一致的补偿声波测井，并通过几个孔的资料对比，达到满意效果。

It is usually performed by placing a probe with a conducting jelly on the persons chest to transmit sound waves into the body and the images are displayed on a monitor.

它通常是由放置一个探针与导电果冻就person s公益金转交声波到身体和图像显示在监视器。

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。