To improve the strength of the packing bag is folded packet suture, prevent material leakage, scatteringphenomena.
折边封包缝合后提高包装袋口强度，防止物料漏出，散包现象。
2
Classically, the solution of boundary value problems associated with electromagnetic radiation and scatteringphenomena may be reduced to the integral equation.
电磁场的边值问题的解可以转化为积分方程来处理。
3
The corresponding phenomena after the specimen was aged artificially was studied with the small Angle X-ray scattering and DSC, which are suitable for observing structure relaxation.