查询词典 echo-location

We proposed the time-changed dynamic models of radar signals based on dynamic theory, and can analyze quality and quantity of the deinterleaving pulse train;(2) We proposed the algorithm to computer selfsimilarity exponent and detect successfully the object echo buried in noise according to self-similarity of noise and nonsimilarity of sine wave;(3) We also proposed a nonlinear dynamic filtering detection model.

1根据动力学理论，提出了雷达信号的时变动力学模型，利用这个模型可以对已经分选出来的雷达信号进行定性和定量分析；(2)提出了快速计算自相似性指数的算法，并利用噪声和正弦波分别具有自相似性和不具有自相似性的特点，成功地检测到淹没在噪声中的目标回波；(3)提出了一种非线性动力学滤波检测模型。

This system can simulate the working modes of t he spotlight,strip map,scan SAR echo signal because it can output different sign al in three channels simultaneously.

该平台可以3个通道同时输出不同信号，因此可模拟聚束、条带和扫描SAR等工作模式回波。

Previously, short echo time STEAM sequence and short TE PRESS sequence have been used to quantify brain Cr concentration.

综上所述，本研究旨在通过动物实验，以长TE的PRESS序列外标准方法及LCModel软件定量检测活体小猪的脑Cr浓度，然后用高效液相色谱方法分析相应离体脑匀浆液的Cr浓度，比较两种方法检测结果的相关性，以此探讨活体~1H-MRS方法检测结果的准确性。

The author mainly discusses the relationship between the two culture phenomena: culture identification and culture uniform tendency, describes the culture identification in the minds of people in the period of culture globalization, detailedly traces the historical evolvement of culture identification, and expatiates the theory of cultural nationalism 3identification, strong culture identification and entirely westernization identification, at last objectively gives some opinions on the realistic function of western culture in the development of modern society. Meanwhile, the author does not echo what other says, and entirely opposes the what is called culture imperialism or western culture intimidation, on the contrary, the author impersonally analyses some other voices which is arisen with deconstructionism, reminds people must start from national practice, recognize the predominance and shortcoming of one's own national culture, neither narcissism nor self-humiliation.

本文在经济全球化的基础上，分析了经济交往过程中的文化全球化以及文化交往，阐释了文化交往的过程中，不同的文化由始初的相互冲突、对立、差异到相互理解、接受、直至达到认同的发展过程，论述了文化认同与文化趋同两种不同的文化现象之间的相互关系，叙述了在经济全球化、文化全球化时期人们的文化认同的心路，以及文化认同中的种种文化现象，详细地梳理了文化认同的历史演变，阐述了文化民族主义的文化认同、强势文化认同以及全盘西化的文化认同学说，比较客观地评价了西方文化在现代社会发展中的现实作用，同时也比较客观地分析了全球化时期由于解构主义兴起而出现的几个关于文化认同的其他声音，提醒人们要从本国实际出发，认清自己民族文化的历史优势与不足，既不要自恋，也不要自卑。

Its design stems from saucer-shaped starfighters meant to echo the look of the Trade Federation battleships.

它的设计概念源自于飞碟形状的星际战斗机，为的是呼应贸易联邦战列舰的外形。

The golden glazed tile roof, south of the low north-high granite stone steps, cloud ridge green glazed tile arch of welcome gates, with scattered all around the walls have attained a seamless, with Central holding memorial rolling echo the cypress pine trees.

金碧辉煌的琉璃瓦顶，南低北高的花岗岩条石台阶，云脊碧瓦的迎门牌坊，与四围错落有臻的围墙浑然一体，与环抱着纪念馆绵延起伏的苍松翠柏交相辉映。

Therefore, the choice of single mode in the examination and the frequency-thick band of mode has been given a particular illumination separately in the paper, following a relative numerical simulation. And a multi-cyclical sine signal modulated by Hanning window is used to simulate the excitation wave, and then an inspected ring of nodes is established to receive the echo, finally how the length of the circumferential cracks, the width of the axial cracks and the degree of the thickness-reduce effect the result is explained through the analysis of the result, further more, the reflection factor in the defect has been calculated.

因此，本文也就单一检测模态的选择以及模态频厚积段的选择分别予以了阐述，并有针对性的进行了数值计算：应用Hanning窗调制的多周期正弦波模拟单音频激励信号，并设置监测质点环接收回波，通过分析说明了管道的周向裂纹、轴向裂纹以及点蚀缺陷对缺陷回波所产生的影响，并进一步计算了缺陷处的反射系数。

Return mt_rand(1,$sides);} echo roll(6);// roll a six-sided dieecho roll(10);// roll a ten-sided die

然后可以把需要滚动的骰子类型作为参数传递给函数。

The signal returned from sea surface is then computed by employing radar equation and synthetic processing to simulate sea surface echo wave.

然后根据雷达方程和合成孔径高度计的合成孔径处理计算了海面回波信号的矩阵，以便给出最终的功率回波。

A device used underwater to produce pulses of sound, as for an echo sounder .

声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。