名词
中文翻译：包装环
同义词：
['packing ring', 'wrappingring', 'packing roller']
例句：
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1. The packaging machine is designed to makethe carton more secure and protect itscontents.
这款包装机的设计是为了使纸箱更加安全，保护其内容物。
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2. The packingring is used to wrap the product inplastic film before it is shipped.
绕线器用于在产品装箱前将其包裹在塑料薄膜中。
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3. Thepacking roller is an essentialtool for the packaging industry,helping to ensure that products are well-protected during transportation.
绕线器是包装行业的重要工具，有助于确保产品在运输过程中得到妥善保护。