名词
中文翻译：水柱
同义词：
['water column', 'hydrometer例句：1. The meteorologist used a thermometer to measure the temperature of the water column.（气象学家用温度计测量了水柱的温度。）']
例句：
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1. The meteorologist used a thermometer to measure the temperature of the water column.
气象学家用温度计测量了水柱的温度。
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2. The hydrometer was used to measure the density of the water column.
测水仪被用来测量水柱的密度。
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3. The meteorologist observed the movement of the water column in the ocean.
气象学家观察了海洋中水柱的运动。