... 油面信号灯 oil level tell-tale; oil-level tell-tale 地面信号接口 ssi; surface signal interface 地面信号烟火 ground flare ...
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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。
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