名词
中文翻译：重力锚
同义词：
['gravitational anchor', 'gravity-anchored structure']
例句：
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1. The ship's gravity anchor has been set to prevent it from drifting too far away.
船只的重力锚已经设置好，以防止它偏离太远。
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2.The anchor was designed to hold the boat in place during high winds.
锚的设计是为了在大风中固定船。
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3. The anchor is essential for keeping the vessel stable in rough seas.
锚对于保持船只在风浪中的稳定性至关重要。