用超声波探测器可以定位鱼群，渔民们准备一种特别的装置：看起来象连着扶手的陀螺。
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.
医生找到肾结石后，就将超声波探测器移到正对着肾结石的部位。
After the doctors find the stone, the ultrasound probe is placed directly against it.
这些包括照相机，超声波，红外线和热传感器，一个测距仪传感器，温度传感器和地面探测器。
These include a camera, ultrasound, infra-red and thermal sensors, a range-finder sensor, a temperature sensor and ground detectors.
公司拥有红外线成像仪、超声波探测器等先进的仪器设备，能及时发现消防隐患。
We have Infrared Image and Ultrasonic detection machine, which promised the danger in time.
公司拥有红外线成像仪、超声波探测器等先进的仪器设备，能及时发现消防隐患。
We have Infrared Image and Ultrasonic detection machine, which promised the danger in time.
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