The development of the ring-banded spherulites in PTT solution-cast film is a rhythmic growth process, and thus it is consistent with the structuraldiscontinuity model.
确定了环带球晶的形成机理，即间歇式增长过程，符合结构不连续模型。
2
Stress raiser. A small flaw (internal or surface) or a structuraldiscontinuity at which an applied tensile stress will be amplified and from which cracks may propagate.