1) ice fathometer
回声测冰仪
2) up-and-down fathometer
回声测深兼测冰仪
3) overhead sonar
回音测冰仪
4) Behm lot
回声测声仪
5) echo sounder
回声探测仪,回声测深仪
6) echo sounder
回声测深仪
1.
With the development of the electronic technology especially the digital signal processor,the echo sounder is stepping into the digital age.
随着电子技术特别是数字信号处理器的迅速发展,回声测深仪进入了数字化时代;计算机技术与数字信号处理器的结合,使测深仪一改其单一的旧"面孔",人机操控显示界面、结构组成呈多样性。
2.
Echo Sounder is a kind of acoustic measuring depth equipment, which can measure depth with the time between transmitted wave and echo on condition in which the speed of ultrasonic is fixed.
回声测深仪是用来测量水深的一种声学测量设备,其以水中超声波的传播速度为确定条件,利用发射波与反射回波时间差来测量水深。
补充资料:回音
①回声:礼堂~大,演奏效果差一些。②答复的信:回话:我连去三封信,但一直没有~ㄧ不管行还是不行,请给个~。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条