名词
中文翻译：水压载物
同义词：
['ballast', 'buoyancy control device']
例句：
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1.The ship's water ballast was adjusted to maintain stability.
调整船只的水压载物以保持稳定性。
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2. The engineer used a water ballast to balance the weight of the heavy equipment.
工程师使用水压载物来平衡重型设备的重力。
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3.The boat's water ballast was crucial for keeping it afloat during high winds.
船的浮力调节器在大风中保持漂浮至关重要。