First, if the nature of dry-heat sterilization is due to oxidation, the crystalline material may impede the diffusion of oxygen to the cell, thus extending the time to sterilize.

• 第一，如果干热灭菌的本质是由于氧化，晶体材料可能阻碍氧扩散到细胞，从而延长了灭菌时间。