名词
中文翻译：Unknown
同义词：
['extraction', 'distillation', 'precipitation例句：1. The process of extracting oil from plants is known as refining.（从植物中提取油的过程被称为精炼。）2. The extraction of water from the soil is crucial for plant growth.（从土壤中提取水对植物生长至关重要。）']
例句：
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1. The process of extracting oil from plants is known as refining.
从植物中提取油的过程被称为精炼。
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2. The extraction of water from the soil is crucial for plant growth.
从土壤中提取水对植物生长至关重要。
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3.The scientist extracted a sample of the unknown substance.
科学家提取了未知物质的样本。