名词
中文翻译：实际证明
同义词：
['practical evidence', 'practical demonstration', "practical verification例句：1. This is a practical proof of the theory's validity.（这是该理论有效性的实际证明。）"]
例句：
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1. This is a practical proof of the theory's validity.
这是该理论有效性的实际证明。
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2. The practical demonstration of the new technology was impressive.
新技术的实际演示令人印象深刻。
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3. The company presented a practical verification of its financial statements.
该公司展示了其财务报表的实用验证。