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英语翻译Vacuum/Pressure Retention是一种检漏方法,测量包装顶空真空或压力的,正确的中文翻译是什么

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英语翻译
Vacuum/Pressure Retention是一种检漏方法,测量包装顶空真空或压力的,正确的中文翻译是什么?
原文
8.15 Vacuum/Pressure Retention
Description:Vacuum/pressure retention tests consist of directly measuring the vacuum or pressure within a package headspace by typically using a package piercing device and an absolute pressure gauge.Vacuum/pressure retention tests are used for packages that are designed to maintain either a vacuum or positive pressure within the package as a function of product stability.
真空/压力保留