1) low-frequency sonar
低频声纳
1.
The experiment and analysis of low-frequency sonar application on hydrophone positioning
低频声纳在浅海水下检波器定位中的应用试验及分析
2) Low-frequency Active Sonar
低频主动声纳
1.
With analyzing the detecting procedure of Low-frequency active sonar and emulating about it, the Optimum Detection Frequency Band of Low-frequency Active Sonar were researched.
低频主动声纳是对传统的高频主动声纳的一种重大改进,它能利用低频主动声信号实现对水下目标的远距离探测。
3) all bottom,low-frequency sound
低频声<声>
4) frequency modulated sonar
调频声纳
5) low-frequency noise
低频噪声
1.
Impact of indoor virescence on annoyance of indoor low-frequency noise;
室内绿化装饰对低频噪声烦恼度的影响
2.
Theoretical analysis of low-frequency noise radiated from bridge vibrations;
桥梁振动辐射低频噪声评估方法研究
3.
The investigation of relations between low-frequency noise subjective sensation and spectrum characteristics
低频噪声主观感知与频谱特征关系研究
6) low frequency absorption
低频吸声
补充资料：低频
1.指应用于某一技术领域中的最低频率范围。例如，无线电波段中，将30～300千赫范围内的频率称低频;电子放大电路中，将接近音频(20赫兹～2万赫兹)的频率称为低频。
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