Objective:To analyze the variety of parameter TE(time to echo), which should influence the segmentation of MR brain images.
目的：分析TE（回波延迟时间）参数变化对MR颅脑图像分割的影响。
He found that the length of time it takes a sound's echo to decay is determined by the absorption of the sound's original energy by surrounding material.
他发现，声音回声衰减的时间长短取决于周围物质对声音原始能量的吸收。
He went up to the mountains and shouted, "I hate you, I hate you," and back came the echo "I hate you, I hate you." This was the first time that he had heard an echo.
他爬到山上大声喊：“我恨你，我恨你”，就听见回声“我恨你，我恨你”，这是他第一次听到回声。
During the process, ping can monitor the time it takes to send and receive the response, which can be an effective method of measuring the response time of the echo process.
在这个过程中，ping可以监视发送数据包和接收响应花费的时间，这是测量echo过程的响应时间的有效方法。
In the simplest form, you can send an echo request to a host and find out the response time (see Listing 1).
按照最简单的形式，可以向一个主机发送echo请求并查明响应时间(见清单1)。
The output from a successful ping can also be useful in helping to determine network latency, as it reports on the time taken to receive the echo reply.
成功的ping的输出还有助于判断网络延迟，因为它会报告收到回显回复花费的时间。
Moreover, the photon echo signal gave the dephasing time due to the phonon interaction.
同时由光子回波信号测得由声子作用引起的波包退相特征时间。
The direction of longest echo time is the direction of minimum earth stress, and the direction of greatest earth stress is perpendicular to it.
回波时间最长的方向为最小地应力方向，最大地应力方向与之垂直。
At this time, the lights to be distinguished from a field main tone, but also must with the main color phase echo.
此时，灯光要区别于现场主色调，同时又必须与主色调相呼应。
PGA algorithm based on radar echo signal is one method of estimating and correcting phase error in time domain, and its algorithm is simple to use.
基于雷达回波信号的PGA算法是在时域估计和校正系统相位误差的一种方法，算法较简单。
This method utilizes the multiple receiver of monopulse tracking radar, and adopts the time-space processing method to process the echo.
该方法利用单脉冲雷达空间双路接收的特点，采用时-空二维联合处理的方法对回波信号进行处理。
By this mapping method, the real time coordinate conversion and processing of the echo signal become possible to perform for an ordinary PC.
采用该映射方法，在普通的PC机上即可完成实时坐标变换及对回波采样数据的进一步处理。
Adaptive algorithms are applied to real-time stereophonic acoustic echo cancellation to improve the communication quality of teleconference.
将自适应算法应用于实时立体声回波对消，以提高电话会议的通信质量。
Using simulation echo wave and accurate time delay circuit to measure ranging ability, using CCD to grasp laser facular to measure divergence of laser pulse, the digitized methods are realized.
采用模拟回波和精密延时电路检测照射能力、用CCD采集激光光斑测试激光束散角，实现了整机性能的数字化检测。
To suppress ionospheric clutter in the echo signal of high frequency surface wave radar (HFSWR), a method to suppress clutter based on time-frequency analysis and eigenvalue decomposition is proposed.
针对高频地波雷达回波信号中的电离层杂波，提出了利用时频分析与特征值分解抑制杂波的方法。
As a new type of recurrent neural network, echo state network (ESN) is applied to nonlinear system identification and chaotic time series prediction.
ESN(回声状态网络)是一种新型的递归神经网络，可有效处理非线性系统辨识以及混沌时间序列预测问题。
But the white snow flies actually admires to beautiful woman singer Jiao Kerou already the long time, and has delivered the love letter, actually slowly cannot obtain the echo.
仪表堂堂且事业如日中天的他自然少不了女性的青睐。但白雪飞却对美女歌手焦可柔心仪已久，并送上了情书，却迟迟得不到回音。
The launch system USES ultrasonic echo and reflection of the time difference to measure the distance test.
该零碎应用发射超声波与反射回波时间差来测量待测间隔。
The capability of time reversal processing for echo-to-reverberation enhancement is studied using computer simulation under the condition that target is in the middle of the shallow water guide.
针对典型的浅海波导环境，通过计算机仿真研究了目标位于波导中间深度条件下时间反转处理增强信混比的能力以及目标深度的变化对信混比增强能力的影响。
I have to echo that, You have steel in your eyes when you sing. You are totally focused. The first time I heard this song it was fantastic, well this was a step up, ' Simon shared.
最后西蒙点评：“你们在唱的时候眼睛里透露出坚定，唱得相当投入，第一次我听到你们唱这首歌的时候我觉得很惊艳，而这一次提高了不少，更上了一个台阶。”
Based on studying the generating and receiving circuit of ultrasonics, this dissertation analyzes that the key to improve measuring accuracy is how to seek the starting time of ultrasonic echo signal.
在研究了超声波信号的产生、接收电路的基础上，分析了提高测量精度的关键在于如何精确地寻找到超声波回波信号的起点时刻。
By using the life time of a certain scale echo to restrict the lead time, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.
根据不同尺度回波生命史来约束其预报时效，得到分尺度下的降水预报场，实现暴雨回波多尺度的合成降水量临近预报；将分尺度与不分尺度降水预报结果进行了比较。
Architecture is an echo of our society and culture and at the same time it can influence the way that people relate to their surroundings.
建筑是社会与文化的回响，它同时也影响到人们与周遭环境联结的方式。
Using the time-gain compensation technique to compensate for ultrasonic waves weaking when transmitting in the air, and reduce the fluctuation of echo signal.
采用了时间增益补偿技术和峰值时间检测技术，可正确检测超声波回波的到达时间。
The nation will suffer great financial loss since China now is in the midst of a TV series boom in an echo of its economic prosperity; the people will be confused as to how to kill their spare time.
中国的电视剧产业经济非常繁荣，如果没有了电视剧，中国的经济将会遭受沉重打击：人们将会不知道如何消磨闲暇时光。
This overload allows you to specify a time-out value for the operation and control fragmentation and Time-to-Live values for the ICMP echo message packet.
此重载允许您指定操作的超时值，并控制ICMP 回显消息数据包的碎片和生存时间值。
Aiming at data acquisition of radar echo signal with low SNR, IF band-pass sampling concept is proposed. High-speed acquisition card PCI_9820 is used to sample in real-time and store data.
针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PC I_9820高速采集卡实时采集和存储数据。
Aiming at data acquisition of radar echo signal with low SNR, IF band-pass sampling concept is proposed. High-speed acquisition card PCI_9820 is used to sample in real-time and store data.
针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PC I_9820高速采集卡实时采集和存储数据。
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