名词
中文翻译：作物产量率
同义词：
['yield rate', 'harvest rate']
例句：
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1. The farmers are trying toincrease their crop yield by using new techniques.
农民们正试图通过使用新技术来提高他们的作物产量。
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2. The government is monitoringthe crop yield to ensure food security.
政府正在监测作物产量以确保食品安全。
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3. The researcher found that higher crop yields could leadto increased food production.
研究者发现，更高的作物产量可能会导致粮食生产的增加。