查询词典 echo-location

An adaptive conjugate gradient algorithm based on subband decompsition structure was proposed for acoustic echo cancellation in communication systems.

针对通信系统中的声学回声干扰问题，研究了一种快速收敛和有效的自适应回声抵消算法。

The techniques of subband adaptive filtering are used to design the Acoustic Echo Canceller in this dissertation.

本文利用子带自适应滤波技术进行声学回声消除设计。

In the subprovincial administrative region of new media industry that reflects innovation ability, be industry of hi-tech equipment, originality and investment orgnaization show a region, except reveal catenary of new media industry adequately to go up outside each link technology, the new media property that the corresponding period holds grows forum, will with exhibit can hand in photograph echo, put up the communication platform that new media industry reveals.

在体现创新能力的新媒体产业专区，是高技术设备、创意产业及投资机构的展示区，除充分展示新媒体产业链上各环节技术外，同期举办的新媒体产业发展论坛，将与展会交相呼应，搭起新媒体产业展示的交流平台。

Fetal head position; fetal movement can be seen; posterior placenta; fetal tentorial low-echo can be seen above the dark zone, size 1.2 * 0.7CM.

超声可见：胎儿头位；胎心胎动可见；胎盘后壁；胎儿小脑幕上方可见低回声暗区，大小1.2*0.7CM。

The formal symmetry and planar surfaces of the mask echo the rigid architectural canons that impart a distinctive 'corporate' style to public architecture at the great ceremonial centre of Teotihuacan.

正式的对称性和表面回波平面口罩刚性炮的特奥蒂瓦坎建筑风格，公共建筑在大庆典中心，传授一个企业'特殊'。

The observation centred on the constructive changes of teste ,epididymides and spermatic cords. The thicknesses and widths of the head,boby and cauda of epididymides were comparatively measured with opposite side. The sizes,morphosis,echo and the distribution of color flow of the masses were noted and the resistance indexes of the blood flow were determined.

方法对126例附睾结节行CDFI检测，重点观察睾丸、附睾、精索的内部结构，测量附睾头、体和尾的厚度及宽度，描述附睾结节的大小、形态、回声及彩色血流分布状况，并检测其阻力指数。

The other animals decided not to tell him theat it was really an echo of his own voice because they sisn't have to hear the little lion's songs!

其他的动物决定不告诉他那是他自己的回音，因为他们不想听小狮子唱歌。

Nimtz allowed the music to echo tinnily around the room for a few moments until the woodwind and horns emphatically reinforced the strings.

Nimtz 让乐曲在房间里继续播放了一段时间，直到木管乐器和长号加入到弦乐里来。

A choir gives back menace and echo, assisting about the altar's horns, the snorted Latin of jackpriests moving burly in their albs, tonsured and oiled and gelded, fat with the fat of kidneys of wheat.

这些削了发、除了圣油、被阉割、靠上好的麦子吃胖了的、靠神糊口的神父们，笨重地挪动着那穿白麻布长袍的魁梧身躯，从鼻息里喷出拉丁文。在祭台四角协助的唱诗班用威胁般的回声来响应。

The receiving circuit adopts programmable gain amplifier and filter, enables the instrument to realize the automatic filter and the automatic adjusting enlargement factor according to the echo signal's different amplitude and frequency; Having AC and DC power supply modes, the system can satisfy different situation; Having adopted the big screen TFT LCD,caused the tested wave displaying intuitively;Having designed the toucher ,which enables the system to have a human-computer interaction function, helps user operate facilely.

接收系统采用程控滤波和程控放大，使得用户能根据回波信号的强弱和探头频率的不同而选择不同的滤波电路和放大倍数；交直流供电满足不同的应用场合；采用高分辨率大屏幕TFT液晶显示器，被测波形直观形象；触摸屏输入，操作方便。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。