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The fish finder is an abbreviation for a fish detector, which is an electronic device designed to detect the distribution of underwater fish stocks, usually on fishing vessels. In the course of the...

First, through the induction head sensing external action body; Secondly, the sensor head transmits information to the control system; Finally, the control system to make the relevant instructions.

In the water depth measurement work, but also to accurately determine the depth of the plane position, this work is called positioning. When the depth is measured, the plane position of the depth p...