名词
中文翻译：底部印章
同义词：
['bottom mark', 'bottom seal例句：1. The artist used a bottom stamp to create the design on the canvas.（艺术家使用底部印章在画布上创作设计。）']
例句：
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1. The artist used a bottom stamp to create the design on the canvas.
艺术家使用底部印章在画布上创作设计。
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2.The company uses bottom stamps to ensure the authenticity of its products.
该公司使用底部印章来确保其产品的真实性。
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3. The stamp collector found a rare bottom stamp that he had been searching for years.
邮票收藏家发现了一个罕见的底部印章，他已经寻找了多年。