• With help of a sonic depth-finder a proper shoal gets detected and the fishermen prepare special devices which look something like spinnings and attached to the handrails.

    超声波探测器可以定位鱼群渔民准备一种特别装置看起来连着扶手的陀螺。

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  • A depth finder is useful to locate structure, but not necessary.

    找到结构有用,不是需要深度

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  • Based on the principle of mass balance, the Pseudo-Level Depth Finder can attain the true level by testing annular gas rate.

    根据物质平衡方法设计拟液面测试仪,通过测试油井排气量来确定油井真实

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  • Laser detecting mine and laser depth finder, etc are testing and trying out laser weapon on board, laser communication and laser gyro are demon...

    舰载激光武器、激光通讯激光陀螺处在论证、试验阶段。

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  • Laser detecting mine and laser depth finder, etc are testing and trying out laser weapon on board, laser communication and laser gyro are demon...

    舰载激光武器、激光通讯激光陀螺处在论证、试验阶段。

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