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空气21%,充氮后通常降至 0.5-3%
铝箔≈0.5,EVOH≈0.5-5,PET≈50-100,PE≈2000+(典型值)
包装残氧量估算器是一款美食烹饪领域的在线工具。美食烹饪工具,帮助精确掌握食材配比与营养。