回声定位是比较不解自明的；利用声波反射的回声来定位物体。
Echolocation is pretty self-explanatory; using echoes reflected by sound waves to locate things.
这些蝙蝠能够区分这两种声音，不仅仅是通过树木的回声，而是通过任何平滑或粗糙的回声。
These bats can distinguish between the two, and not just with trees, but with any echo that comes in a smooth or rough shape.
事实上，我们推断蝙蝠在分析回声时过滤掉了很多因素，就像一个复杂的雷达系统可以忽略地面上静止物体的回声那样。
In fact, we kind of assumed that they were filtering a lot out, the way a sophisticated radar system can ignore echoes from stationary objects on the ground.
所以，树的回声会是一团混乱的声波反射，而不像飞蛾的回声那样。
So, the echoes from a tree are going to a mass of chaotic acoustic reflections, not like the echo from a moth.
这些受试者不仅可以清楚地分辨哪一种物体对应哪一种回声，而且大脑活动跟踪发现当他们听见这些回声时，大脑的视觉皮质会有活动。
The subjects were not only able to tell which objects matched which echo pattern, but the brain tracking revealed the visual cortex activity when the subjects heard the echoed clicks.
有些盲人已经可以通过敲击的回声来进行“回声定位”。
Some blind people have learned to echolocate by making clicking noises and listening to the returning echoes.
这些声调组成一个回声定位声波，蝙蝠接收到返回声波的时候，这个捕食者就会获得猎物的大小、位置和多少等信息。
When the echo returns to the hunting bat, the predator can glean information about the size, location and more of prey.
最近的研究证实在利用回声定位的盲人受试者中，是大脑的视觉部分在处理听觉的回声。克里斯蒂·尼克尔森报道。
Recent research has confirmed that in blind subjects who use echolocation to navigate, it is the visual part of the brain that processes the auditory echoes. Christie Nicholson reports.
这是回声壁，站在上面大声呼喊可以感受到很强烈的回声。
This is the echo wall; standing on the top of a loud cry can feel a very strong echo.
真正的回声常常在被改变时就消失了，但你可以通过两台录音机上的人工的回声知道它们是如何工作的。
Real echoes usually fade away before they become thatdistorted, but you can see how it works with an artificial echo on two recorders.
结论无回声边及肿瘤内无回声区提示RCC的诊断。
Conclusions an anechoic rim or intratumoral cysts suggests the diagnosis of RCC.
这一方法被称为“回声定位法”，是一种借助物体产生的回声来识别其方位的方法。
It's called 4 echolocation, a technique that USES sound to identify objects by the echoes they produce.
针对通信系统中的声学回声干扰问题，研究了一种快速收敛和有效的自适应回声抵消算法。
An adaptive conjugate gradient algorithm based on subband decompsition structure was proposed for acoustic echo cancellation in communication systems.
切面实性均匀的为17例，其中高回声8例，等回声1例，低回声8例。
The gross pathological section of SRCC shows homogeneous solid in 17 cases, including hyperecho(8 cases), isoecho(1 case), and hypoecho(8 cases).
均以同一患者健侧对应部位做对照，观察皮肤及皮下组织厚度、回声特征及皮神经的宽度、回声特征。
Compared with the healthy side of the same patient, thickness and echo feature of the skin and subcutaneous tissue, the width and echo feature of the skin nerves were recorded.
人们可以通过回声接收装置来确定回声的发生位置及其强度。
The reflected echoes are received by an electronic apparatus that measures their intensity level and the position of the tissue reflecting them.
本文在介绍回声测深仪基本工作原理的同时，介绍了回声测深仪在杭州湾口外一拟建大型码头水下地形测量的一个应用实例。
The paper briefs the basic principles of the fathometer and its application to submerged landform measurement near a planned large dock out of the Hangzhou Bay.
本文从回声性言语定义、类型、成瘾，互动价值及语用功能等方面，对特殊儿童出现的回声性言语进行了分析。
This article analyzes special childrens echolalia from the following aspects: its definition, categories, causes, interaction value and pragmatic functions.
超声：表现为邻近食管的低回声结构，后方可见回声增强，与单纯囊肿相一致。
Ultrasound: Appears as a hypoechoic structure adjacent to the esophagus with posterior acoustic enhancement, consistent with a simple cyst.
在此基础上讨论了回声隐藏的应用范围，并对回声隐藏的发展趋势进行了展望。
On the basic of this, applications of echo hiding are discussed. Finally, the prospect of echo hiding is described.
本文主要通过对传统回声状态网络(esn)的结构和学习机理的研究，探讨了回声状态网络对混沌时间序列的预测方法。
In this paper, the traditional echo state network (ESN) through the structure and learning mechanism of the study, on the echo state network prediction method of chaotic time series.
每遇到一个反射面时，回声在示波器的屏幕上显示出来，而两个界面的阻抗差值也决定了回声的振幅的高低。
Each encounters a reflective surface, the echo on the oscilloscope screen displayed the impedance difference between the two interfaces also determine the level of echo amplitude.
结果显示最小回声三维透明成像可显示肝脏内部结构：1）无回声血管结构：显示肝静脉，门静脉，各血管的空间位置关系，及其血管结构病变；
Results showed that the 3 D transparent imaging could demonstrate:1)3 D structure of hepatic and portal veins and their spatial relationship to the lesions;
结果显示最小回声三维透明成像可显示肝脏内部结构：1）无回声血管结构：显示肝静脉，门静脉，各血管的空间位置关系，及其血管结构病变；
Results showed that the 3 D transparent imaging could demonstrate:1)3 D structure of hepatic and portal veins and their spatial relationship to the lesions;
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