名词
中文翻译：棉芯
同义词：
['cotton heart', 'cotton wool', 'cotton pulp例句：1. The cotton core is the center of the cotton fabric.（棉芯是棉织物的中心。）2. The cotton core is used to make yarn and thread.（棉芯用于制作纱线和线。）']
例句：
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1. The cotton core is the center of the cotton fabric.
棉芯是棉织物的中心。
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2. The cotton core is used to make yarn and thread.
棉芯用于制作纱线和线。
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3.The cotton core is a soft material that can be used for various purposes.
棉芯是一种柔软的材料，可以用于各种用途。