查询词典 applaud to the echo

When the mind apprehends the essence of a thing (quod quid est; tò tí en enai), the external object is perceived without the particular notes which attach to it in nature, and it is not yet marked with the attribute of generality which reflection will bestow on it.

当铭记apprehends的本质的东西（狱吏嚼1-5 ；德州仪器恩enai ），外部对象被认为没有特别注意到它重视它的性质（中存在singularibus ），这是没有标明属性一般性的反映将赋予它

According to the difference of Doppler spectra of meteor trail echo and clutter of ground and sea, a FIR high-pass filter is designed to filter out clutter and so the meteor trail echo becomes obvious. Then a smart threshold is obtained from the minimum mean of different segments of background noise and used to detect the meteor trail echo. Finally the phase discontinuity of clutter from the meteor trail echo suppression is eliminated by substituting the data at echo positions with clatter.

该文根据地海杂波与流星干扰在多普勒谱上的差别，提出了用FIR型高通滤波器滤除杂波使流星干扰凸显出来；再根据流星干扰的分布特点分段计算背景噪声均值，求取流星干扰检测门限；最后用杂波信号来插值流星干扰位置上的数据，消除因去除干扰造成的杂波相位不连续。

Results 12 cases as abdominal hernia (of which indirect hernia 9 cases, direct hernia 2 cases, femorocele 1 case), ultrasonography shows middle-high echo or linkage heterogeniety echo clumps; 8 cases as hydrocele, Ultrasonogram shows anechoic; 2 cases as cryptorchidism, ultrasonography shows normal testicular middle-echo; 4 cases as lymph node mass (of which lymphoma 2 cases, lymph node metastasis 1 case, lymph node inflammatory change 1 case), acoustic image shows low weak echo; 4 cases as substance mass (of which fibroma 1 case, spermatic cord tumor 1 case, Desmoid tumor 1 case, spermatic cord inflammation 1 case), Ultrasonography shows non-uniformity middle-highor low echo.

结果 12例为腹外疝（其中斜疝9例、直疝2例、股疝1例），声像图表现为中高回声或混杂性回声团块；8例为鞘膜积液，声像图表现为无回声；2例为隐睾，声像图表现为似正常睾丸样中等回声；4例为淋巴结包块（其中淋巴瘤2例、淋巴结转移1例、淋巴结炎性改变1例），声像图表现为低弱回声；4例为实质性包块（其中纤维瘤1例、精索肿瘤1例、韧带样瘤1例、精索炎症1例），声像图表现为非均匀性中高回声或低回声。

Then 34 echo "Usage: 'basename $0' Word-to-define " 35 echo 36 echo "Note: Word to look up must start with capital letter," 37 echo with the rest of the word in lowercase.

# 注意： 21 #----- 22 #这个特定的1913年版的韦氏词典 23 #+在每个入口都是以大写字母开头的 24 #+。

In accordance with the generating principle of line echo and after analyzing main echo cancellation algorithms, and after in-depth study on the core algorithms of all the module of adaptive echo canceller, in particular, adaptive filtering algorithm and double talk detection algorithm, considering with complexities and capabilities of all the candidates, this paper chooses NLMS algorithm to implement echo canceller.

首先，对回波产生原理和目前几种常用回波消除算法进行了分析，在研究自适应回波消除器的各个模块，特别是深入分析各种自适应滤波算法和双讲检测算法，综合考虑各种算法的运算复杂度和性能的情况下，这里采用NLMS算法实现白适应回波消除器。

However, the latter more complicated, contrasted between radar data and routine observatory data. It can be seen that the classification of the storm rainfall echo according to 850hPa effective system is more ideal, the storm rainfall echo is classified into storm rainfall of trough and storm rainfall of shear line, while storm rainfall of shear line includes storm rainfall of warm shear line and storm rainfall of cold shear line, and their radar echo features are investigated. It is shown that different storm rainfall style is distinct clearly on the echo structure and feature.

而伴有低空急流暴雨的回波特征较复杂，通过对雷达资料及常规观测资料的对比分析，发现利用850hPa的影响系统对暴雨回波分类比较理想，将暴雨过程分成低槽暴雨和切变线暴雨回波两类，切变线暴雨又可以分为冷式切变线暴雨和暖式切变线暴雨，分别分析、研究了不同类型暴雨的多普勒天气雷达回波特征，结果表明不同类型暴雨的回波结构和特征具有明显的区别。

The software of data editing and post-processing is a crucial tool for every institute executing echo-sounding jobs. The echo-sounding group of Institute of Oceanography National Taiwan University had developed a program named "Depth" since 1994 and using it to accomplish many echo-sounding works on

水深资料编修软体为各测深工作单位不可或缺的重要工具，国立台湾大学海洋研究所於1994年即自行开发Depth编修软体，近10年来已应用於海域及水库测深计画并取得良好成效。

In the precision detection of a millimeter wave, the encounter of the detector and the objects can not be forecasted totally because of a lot of noise and disturbance existing in the complex battlefield, it will cause fantasticality and distortion of the echo retaked by the detector, and the stably of the echo become bad, as a result, it will reflect the result of the detection, so it is necessary to filter the echo retaked by detector.

在弹载毫米波精确探测系统中，由于复杂多变的战场环境中存在大量的干扰及噪声，探测器与目标的交会姿态不能完全预测，造成探测器获取目标回波产生奇异和变形，回波特征的稳定性变差，从而影响了目标的探测和识别，因此对探测器的回波进行有效的滤波处理是十分必要的。

In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

这章具体研究了基于三种极化散射特性描述的相应的目标识别方法：①基于极化参数平面描述的目标识别方法，将目标回波极化状态投影到以极化椭圆参数，即椭圆率角ε和倾角τ表征的极化状态平面上，参数随观测频率的变化就形成了图，根据图的变化特点构造了目标的多维极化特征空间，并提取了不敏感目标姿态变化的极化特征参数组来设计目标的识别器结构；②基于Poincare极化球面描述的目标识别方法，采用Stokes矢量表征目标回波的极化状态，并将其投影到描述极化状态的Poincare极化球面上，定义了极化频率稳定度的概念用以刻画目标回波极化状态在Poincare极化球面上的动态分布信息，提取了准方位不变性的目标极化特征，最后设计了目标的识别器结构；③基于频率敏感性描述的目标识别方法，通过在Poincare极化球面上所定义的极化状态距离的概念，研究的是复杂目标物理结构特性对探测信号频率的敏感程度问题，获得了在极化状态距离下的频率分布特性曲线，采用最小二乘估计曲线拟合方法，它既用于极化特征的降维，同时又直接将拟合参数作为目标的分类特征。

The indirect sign included the stercolith in the appendix with sound shadow; periappendicular absence echo or deposit echo when appendicitis complicated with exudation or perforation; mixed swollen echo on the right hypogastric region when abscess formed; dilation of intestine; local ileocecal edema or mesenteric thickening and encysted greater omentum.

横断面呈&靶环征&或圆形回声。2 间接征象：阑尾内粪石并声影；阑尾炎有渗出或穿孔时周围的无回声区或有沉积物回声；脓肿形成时为右下腹混合性肿块回声；肠管扩张；回盲部肠管局限性水肿或肠系膜增厚和大网膜包裹。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？