名词
中文翻译：重力灌溉同义词
同义词：
['gravitational irrigation', 'gravity-based irrigation']
例句：
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1. The farmer used gravity irrigation to ensure the crops were well-watered.
农民使用重力灌溉确保作物得到充分灌溉。
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2. Gravity irrigation is an effective method for watering plants without using a hose.
重力灌溉是一种有效的方法，用于给植物浇水而不使用软管。
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3. The farmers in the region rely on gravity irrigation to grow their crops during the dry season.
该地区的农民依靠重力灌溉在干旱季节种植他们的作物。