1.
echo meter=echometer

回声测试器回声测深仪
2.
double-channel echo well sounder

双通道回声井深测试仪
3.
magnetostriction echo sounding set

磁致伸缩回声测深仪
4.
A trademark used for a sonic depth finder.

回音测深仪一种声音测深仪的商标
5.
magneto striction echo sounder

磁致伸缩回声测深器
6.
hydrographic precission scanning echo sounder

水文精密扫描回声测深仪
7.
combined echo ranging echo sounding

组合回声测距与测深
8.
CERES (Combined Echo Ranging Echo Sounding)

统一的回声测距与测深
9.
horizontal projection echo sounder

水平方向回声探测仪
10.
Single-beam echo sounding measurements

单波束回声测深数据
11.
Multi-beam echo sounding measurements

多波束回声测深数据
12.
"So was born the echo-sounding apparatus, now in general use in ships. "

这样回声测深仪就诞生了,现已为船只普遍采用。
13.
So was born the echo-sounding apparatus,

这样就产生了回声探测仪,
14.
ultrasonic echo-impulse digital thickness meter

超声回波脉冲数字式测厚仪
15.
acoustic pulse echo system

声脉冲回声测距系统
16.
the echo of a pulse of microwave radiation is used to detect and locate distant objects.

用来探测定位远处的物体的微波辐射脉冲的回声的仪器。
17.
A Noise Testing System Used for Engine Based on Virtual Instrument;

基于虚拟仪器的发动机噪声测试系统
18.
FORMULAS FOR ECHO-SOUNDING CORRECTION IN THEAREA OF NORTHWESTERN PACIFIC OCEAN WITHDEPTH MORE THAN 200M
西北太平洋大于200米水深回声测深改正公式