查询词典 echo

US Marine Sergeant Nathan Harris from Yadkinville,North Carolina with the 2nd Marine Expeditionary Brigade, RCT2nd Battalion 8th Marines Echo Co. speaks to an Afghan man through aMarine interpreter after seeing suspicious activity near theirbase on July 14, 2009 in Mian Poshteh, Afghanistan.

美海军陆战队中士弥敦道哈里斯从Yadkinville ，北卡罗莱纳州的第2海军陆战队远征旅，RCT的海军陆战队第二营第八说话回声有限公司一名阿富汗男子通过海洋翻译后，看到附近的可疑活动的基地在7月14日，2009年在棉Poshteh ，阿富汗。

He had therefore amply merited McLennan's indignant reproach that "the historical method is antipathetical to Mr. Morgan's mind," and its echo as late as 1884 from Mr. Professor Giraud-Teulon of Geneva.

所以，摩尔根就得到了应得的惩罚，麦克伦南忿然地责难他&根本厌恶仇视历史方法&，而且日内瓦的教授吉罗─特隆先生在1884年也重申了这一点。

Therefore this way is feasible, and the system is simplified.⑤A procedure of analyzing in target echo theory and simulation for APAR is described in the dissertation.

因而在视频上模拟目标回波的多普勒频率的方法是可行的，并且简化了系统；⑤对机载相控阵雷达目标回波的理论分析和模拟实现进行了深入研究，在目标回波模拟系统方案中采用了用一路目标信号通过和、差波束天线方向图增益进行调制并用移相器控制和、差通道相位的方法，产生目标三个通道的信号。

In APAR simulator system design scheme a new design is used to generate all the sum, azimuth difference and elevation difference channel target echo signal by passing only one channel signal of target through antenna gain multiplication circuit, which simplified the simulator design.

提出了在很短的一帧时间里用匀加速直线运动拟和目标实际运动轨迹的方法，简化了目标回波模拟系统并实现了目标数据的实时模拟。

The quantity computed is the expected clutter power at the output of any specified range gate by the method of integrating reflected energy between constant Doppler loci in range-gate circles with a model of sum and difference antenna gain pattern for APAR. Base on the analyzing of APAR terrain clutter spectrum, Rayleigh, Correlated Log-Normal and Weibull distribution terrain clutter of APAR general pulse signal was simulated with the method of zero memory nolinearity transform.④The Doppler frequency of target echo is simulated on video frequency in this dissertation.

该软件采用了用C语言建立框架结构，而在程序高重复部分和有运算速度要求的地方，用汇编语言编写具有高并行能力程序的方法，不仅满足了系统高运算速度和实时性的要求，也使得软件系统结构模块化，代码具有良好的维护性和重用性；③对机载相控阵雷达HPRF、MPRF的和、差通道地面杂波功率谱进行了较为全面的研究，通过建立由四个子波束构成的机载相控阵雷达杂波和差波束天线方向图数学模型，选取体现高度线杂波的修正的地面后向散射模型，以载机平飞为例，采用沿距离门——等多普勒线区域积分的方法，得到了杂波功率谱，并利用零记忆非线性变换法实现了机载相控阵雷达常规脉冲情况下瑞利分布、对数正态分布和韦布尔分布地面杂波的模拟；④提出了采用在视频上对目标回波的多普勒频率进行模拟的方法。

The common image character of the atresic valve appeared as echo stripe without opening motion.

CVA的共同图像特征表现为闭锁的瓣膜呈一条光带状回声无开放运动。

In bathymetric survey, the recorded seabed is distorted due to the beam-width of the echo sounder.

在海底地形测量中，由于波束角效应导致探测的海底地形存在失真。

The Imperial Vault of Heaven is a beamless hall,to which the neighboring Triple-sound Stones and Echo Wall add an air of mystery.

皇穹宇为一组无梁结构建筑，宇前三音和围墙回音壁声传导建筑，更增添了当年天人感应的神秘气氛。

In order to improving system's precision, many techniques such as improving precision of calculagraph ,using various of filters, on-line temperature compensator, echo location criterion are needed and designed.

为了提高系统测量的准确性和精度，采用了提高计时器分辨率、多重滤波、声速校正以及波形分析算法等措施。

Results The main imaging of adult polycystic kidney disease signs: abdominal plain film (45 cases) showed renal shadow was lobulated increase; cystic wall calcification (14 cases); polycystic kidney disease and renal milk of calcium (8 cases); pelvis angiography (61 cases), the performance of the renal pelvis, renal calices separated, distorted, elongated; retroperitoneal inflatable angiography (6 cases): Performance increases of renal kidney shadow Shadow and the relationship between the neighboring organs, its boundaries clear and identified; CT scan (30 cases): the performance of the majority of the size of the renal low-density areas, ranging from thin-walled circular; B-mode ultrasonography (47 cases) showed a circular echo-free renal multiple classes of liquid dark area .

结果 成人多囊肾的主要影像学征象：腹部平片(45 例)显示肾影呈分叶状增大；囊壁钙化(14例)；多囊肾合并肾钙乳(8例)；肾盂造影(61例)，表现为肾盂、肾盏相互分离、变形、拉长；腹膜后充气造影(6例)：表现为肾影增大肾影与邻近器官之间的关系，其界限清晰可辨；CT扫描(30例)：表现为肾内多数大小不等的薄壁圆形低密度区；B型超声(47例)表现为肾内多个类圆形无回声的液性暗区。结论影像学检查有助于提高多囊肾的诊断的准确性。

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。