查询词典 echo

Methods 50 cases of clinically suspected microadenoma were examined with dynamic enhanced mr imaging, and standard imaging with unenhanced and contrast enhanced spin echo sequences were obtained. the threesequences were evaluated retrospectively and graded for gland lesion contrast conspicuity, lesion, homogeneity, and delineation of lesion margin.

临床拟诊的垂体微腺瘤50例行快速自旋回波对比剂动态增强扫描，接着行常规增强扫描，分析比较动态增强和常规增强两种方法对垂体微腺瘤的检出率。

But he conspicuously avoids any echo of Chen's pro-independence rhetoric.

但他清楚地避免任何回音陈水扁的支持独立的言论。

Discussion of using the backscattering echo to measure turbulent atmosphere structure constant of refractive index.

利用后向散射测量大气湍流强度的探讨。

This paper makes an analysis of the Doppler speed charts of clear weather and the echoes of large-area precipitation. It also singles out the Doppler speed charts of typical wind fields. In addition, this paper analyzes Doppler radars detecting process of the strong convection current weather system. It also conducts a thorough analysis of Doppler echo features of some hazardous weather, such as cell storm and downward storms. Based on this research and analysis, the paper reaches some important conclusions concerning the detecting methods using Doppler radar and the analysis of the information gathered by Doppler radar.

本文通过分析晴空和大面积降水回波的多普勒速度图像，归纳总结出了典型风场的多普勒速度图象，并着重分析了多普勒雷达对严重危害飞行安全的强对流天气系统的探测，特别是深入分析了超级单体风暴、下击暴流等灾害性天气的多普勒回波特征，得出了多普勒雷达对灾害性天气进行探测的方法、雷达资料分析应用等方面许多有益的结论。

Based on the radar dense data of convectional cloud on June 12,2004 in Yongdeng county,choosing two similar convectional clouds as seeding and non-seeding cloud,the remarkable changes of radar echo parameters of the seeding cloud compared with the non-seeding cloud were discussed in this paper,and the rain enhancement effect was evaluated primarily with ground observational rainfall data.The results show that many aspects of the seeding cloud,such as precipitation,life characteristic and vertical characteri...

利用2004年6月12日甘肃省永登县雷达观测对流云的加密资料，选取了2次相似对流云过程分别作为目标云和对比云，探讨了目标云作业前后较对比云雷达回波有关参数的显著变化，并结合地面雨量点观测资料对地面人工增雨作业效果进行了初步分析，结果表明：目标云在降水、生命期特征、回波垂直特征参数变化方面，表现出作业前后较对比云存在明显差异，目标云作业40 m in后地面产生0.6 mm降水，而对比云则从新生发展到减弱消散阶段经历较短的时间(30 m in)，地面并无降水产生，从而推断本次人工增雨达到了一定的预计效果。

Especially, the technology of Automatic Gain Control and signal processing are studied which are key factors working on the performance of the receiver. Based on analyzing the theory of automatic Gain Control, operational amplifiers 0P37 and logarithmic D/Aconverter AD7111A are used to design variable gain amplifiers which can be controlled numerally, A/D convector LTC1405 is Used to test the echo, Complex Programmable Logic device is used for controller, and an arithmetic is designed for automatic Gain Control which is simulated and analyzed in order to test its feasibility.

本文在分析自动增益控制AGC原理的基础上，采用集成运放OP37和数控增益衰减器AD7111A设计可数字控制的可变增益运放模块；采用高速A／D转换器LTC1405作为回波信号检测模块；采用复杂可编程逻辑器件CPLD作为核心控制模块，构成数字自动增益控制电路，并设计粗调和细调步进控制相结合的算法，对回波信号的增益进行精确而快速的调节控制，使回波信号振幅快速稳定在设计指标范围内，利于接收机后续信号处理电路对回波信号作进一步的处理。

They were so cosy and intelligent, and my belief in them seemed to echo their belief in me.

他们是那么可亲、人又聪明，我对他们的信任就如同他们对我的信任。

In the era, the shadow of freedom can be seen everywhere, and equality and justice are the pursuit. The molding of the 20th century's great crankle brings various feelings of ending day, gray eidolon and counter-tide of living. The theoretical echo and new tide are also thundering.

其中，自由的迷影随处可见，公平和正义始终是基本的追求。20世纪晚期的历史巨大弯道的成型，带动了各种末世之感、灰色幻像和生活中的阵阵逆潮，理论的回波与新潮也异常激涌。

The molding of the 20th century's great crankle brings various feelings of ending day, gray eidolon and counter-tide of living. The theoretical echo and new tide are also thundering. The contemporary sociology realizes the importance of practice.

其中，自由的迷影随处可见，公平和正义始终是基本的追求。20世纪晚期的历史巨大弯道的成型，带动了各种末世之感、灰色幻像和生活中的阵阵逆潮，理论的回波与新潮也异常激涌。

I do hope that the music of a creek from me will echo the deep of valley of you.

我真诚地希望：我所带来的音乐能唤醒你内心深处的感觉。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。