名词
中文翻译：扩展的源头
同义词：
['extended source', "expanded source例句：1. The company's new product line is an extension of its existing technology.（该公司的新产品线是其现有技术的延伸。）"]
例句：
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1. The company's new product line is an extension of its existing technology.
该公司的新产品线是其现有技术的延伸。
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2.The research project aims to expand the knowledge base in this field.
该项目旨在扩大这一领域的知识基础。
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3. The company has been expanding its market share in recent years.
该公司近年来一直在扩大市场份额。