As a result of exposure to absorb light, as a result and cross-linked mediumso incomplete cross-linked, photoptic of the appearing on rubber produce swelling and part of chemonucleolysis.

• 因曝平不敷，使汲取平而交联的感平质料不完残交联，不隐影不不不差感平胶爆发溶胀和局部凝固所致。