标准测试环境：正式指定的测试纸张环境；相对湿度50%，温度摄氏23度。
Standard testing conditions: Officially specified conditions under which paper is tested: 50%relative humidity and 23 degree Celsius.
文物保护专家指出，以上研究和博物馆标准相比，相对湿度变化仍然严重。
The conservator will remark that the RH variation is still extreme, compared with the variation allowed by museum standards.
文物保护专家指出，以上研究和博物馆标准相比，相对湿度变化仍然严重。
The conservator will remark that the RH variation is still extreme, compared with the variation allowed by museum standards.
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