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- To solve the laser weak echo detection under the clutter background, A dynamic programming (DP) technique has been developed for the detection of weak targets. 摘要为解决低信噪比下激光微弱回波的检测问题，提出了一种新的小目标检测算法。
- A METHOD OF ECHO DETECTION AND RECOGNITION 一种回波信号的检测识别方法
- underwater target echo detection 水下目标回波检测
- Sea Echo Detection with the System of Ionospheric Backscatter Sounding 利用返回散射系统监测海洋回波
- Her performance was cheered to the echo. 她的表演获得长时间的喝采。
- The bird-song is the echo of the morning light back from the earth. 鸟的歌声是曙光从大地反响过去的回声。
- His words aroused no echo in their hearts. 他的话未能在他们心中引起共鸣。
- It prevents the other end from hearing an echo of themselves. 该功能可以防止远端听到他们的回声。
- The daily echo have a readership of over ten millions. 《每日回声报》拥有读者逾一千万人。
- Her softening voice chimed in beautifully with the echo of the music. 她柔和的嗓音与乐曲的回声美妙地融为一体。
- Cumulative Normalization Algorithm to LFM Echo Detection of Underwater Moving Target Under Reverberation Noise Background 基于水下动目标LFM回波检测的累积归一化算法
- The young man is only an echo of his mother's opinions. 那个年轻人只不过是他母亲意见的附和者。
- The Daily Echo has a readership of over ten million. 《每日回声报》拥有读者逾一千万人。
- The return of the echo will elapse longer time. 回声返回所耗的时间越长了。
- She shouted on the mountaintop and listened for the echo. 她在山顶上大声喊着，然后聆听着回声。
- The moving echoes detected by grey-scale ultrasound is more significant than the blood flows detected by color power Doppler in the intervillous circulation in inevitable abortions (P<0.01). 早期难免流产中胎盘绒毛间隙移动点状回声显示率高于彩色能量多普勒血流显示率，差异具有统计学意义(P<0.;01)。
- A circuit that needs to use an echo trap if the circuit is used alone. 一种电路，如果单独使用它，则需要使用回波抑制设备。
- Pertaining to the detection and isolation of a malfunction or mistake. 用于修饰或说明与故障或错误的检测和隔离有关的特性。
- 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
- An echo was returned from the round wall. 从圆形的墙壁反射出回声。
