2) underwater acoustic signal
水下声信号
1.
The underwater acoustic signal can cause surface wave motion at the water-air interface and hence modulate the magnitude of the laser beam falling on the water surface.
水下声信号在水-空气界面会引起表面波动而对打在水表面的激光进行调制。
2.
A research was made on detecting underwater acoustic signals using laser.
对激光探测水下声信号可行性进行了研究。
3.
The laser detection of underwater acoustic signals exploited a laser receiving technique.
水下声信号激光探测技术采用了激光接收技术。
3) submarine bell
水下信号钟
4) Underwater acoustic signals
水下声信号
1.
Medium and low frequency underwater acoustic signals detecting with laser interferometry
中低频水下声信号的激光干涉法探测
2.
A new method has been developed to detect real-time underwater acoustic signals with laser and a corresponding test system has been built.
设计并实现了一套空中探测水下声信号的实验装置。
3.
A testing installation established by using the proposed method can detect underwater acoustic signals,which verifies the adequacy of relevant theory and simulation process as well as practicability of the method.
采用该方法建立的实验装置可准确探测水下声信号,验证了理论和仿真程序的正确性以及该方法的可行性,为航空遥感水下目标提供一种技术途径。
5) underwater coding signal source
水下编码信号源
1.
Flow velocity calculation method,recorder and underwater coding signal source principle,functions,technical features are introduced.
LJ系列流速记录仪中流速测算、记录仪和水下编码信号源的原理、功能、技术特点,阐述了计算机和单片机技术,以及编、解码技术在水文仪器方面的应用。
6) underwater signal transmission
水下信号传输
补充资料：地下水水资源评价(见水资源评价)
地下水水资源评价(见水资源评价)
d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
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