With the continual increase in the range of anti-ship missiles, the long distance attack of anti-ship missiles need to use long distance exploring platform to provide target indication.
随着反舰导弹射程的不断增加，反舰导弹远程攻击需要使用远程探测平台提供目标指示。
The system of passive ranging SONAR makes use of the target noise received by the equipment which converts energy from one form to another to estimate the target distance.
被动测距声纳系统是利用换能器基阵接收的目标辐射（噪声）信号来估计目标距离。
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