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water levels的英文翻译是什么意思，词典释义与在线翻译：
英英释义
名词 water level:
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the level of the surface of a body of water
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underground surface below which the ground is wholly saturated with water
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a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship
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a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube
