结果表明：用木素部分代替炭黑在套袋期间几乎不影响水果生理保护纸的耐久性。
The results show that: Replacing partly carbon black with lignin hardly influences the endurance of the Fruit Raising Pouch.
由于绝大部分结构在承受地震作用时都已使用一定年限，其耐久性必然随着使用年限的增加发生损伤。
As the majority of structures to withstand earthquakes have been used a certain number of years, its durability inevitably increase as the useful life of damage occur.
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