The method comprises the following steps of: preparing and prefreezing materials, drying the materials by sublimation and desorption under vacuum, and hermetically conserving the materials.
由以下步骤组成：物料准备、预冻、真空条件下升华干燥和解 吸干燥，最后密封保存。
The method comprises the following steps of: preparing and prefreezing materials, drying the materials by sublimation and desorption under vacuum, and hermetically conserving the materials.
由以下步骤组成：物料准备、预冻、真空条件下升华干燥和解 吸干燥，最后密封保存。
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