名词
中文翻译：回声强度指示器
同义词：
['echo intensity indicator', 'echo power indicator', 'echo signal strength indicator']
例句：
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1.The echo strength indicator on the radar screen shows that there is a strong echo in this area.
雷达屏幕上的回声强度指示器显示这个区域有强烈的回声。
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2.The engineer used an echo strength indicator to measure the distance between the two ships.
工程师使用回声强度指示器来测量两艘船之间的距离。
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3. The echo strength indicator was used to determine the direction of the sound wave.
回声强度指示器被用来确定声波的方向。