名词
中文翻译：垂直测深
同义词：
['vertical survey', 'vertical sonar']
例句：
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1. The ship's crew used a vertical sounding to map the depth of the ocean floor.
船员们使用垂直测深来绘制海洋底部的深度图。
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2. The submarine was equipped with a vertical sounding system that could detect underwater objects.
潜艇装备了一套垂直测深系统，能够探测水下物体。
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3. The research vessel conducted a vertical sounding to gather data on the marine ecosystem.
研究船进行了一次垂直测深，以收集海洋生态系统的数据。