1.
Piezoelectric Composites Standard Reference hydrophone for the frequency rang 100～500kHz
100kHz-500kHz压电复合材料标准水听器
2.
Guide to hearing aid standards
GB/T11452-1989助听器标准的指南
3.
His listening comprehension and oral ability are good enough to go to the States.
他的听力和口语水平达到赴美标准。
4.
The movable target on a leveling rod.
视准器水准尺上可移动的目标
5.
radio sonobuoy and hydrophone
无线电声纳浮标与水下听音器
6.
Estimation of the Underwater Target Based on NEMS Vector Hydrophone
基于纳机电矢量水听器的水下目标估计
7.
Present Status of Standards Testing and Certification of Solar Water Heaters in Europe;
欧洲太阳热水器标准、检测和认证现状
8.
An Absolute Calibration Method of PVDF Membrane Hydrophone
聚偏氟乙烯薄膜水听器的绝对校准方法
9.
Calibration of Bi-hydrophone Used in Acoustic Intensity Measurement System
声强测量系统用双水听器的校准方法研究
10.
Tri-axis Vector Hydrophone and Research of Low Frequency Calibration
三维矢量水听器及其低频校准方法的研究
11.
DOA Estimation of Multi-Sources by Single Vector Transducer;
单矢量水听器多目标方位估计方法研究
12.
The Study of Estimating the Bearing of the Target with the Vector Sensor;
矢量水听器确定声源目标方位技术研究
13.
Identifying multiple targets by a single vector hydrophone based on the cross-spectrum goniometry
单矢量水听器基于互谱测向的多目标分辨
14.
Application of Data Fusion Technology in Vector Hydrophone Bearing Estimation
数据融合在矢量水听器目标定向估计中的应用
15.
reference cavity
标准[基准]空腔谐振器
16.
The Research of Calibration Method for Plural Hydrophone Sensitivity Using Laser Doppler Technique;
使用激光多普勒技术校准水听器复数灵敏度方法研究
17.
calibration marker
校准指示器, 校准标记(频标, 时标)
18.
UART CHIP(Universal Asynchronous Receiver/Transmitter)
标准异步接收器／发射器