At present, in this technology has not a quantitive model to portray the artificial barrierpressure drop, best position of pave, thickness and the best amount of used.
目前该技术中没有一个量化的模型来刻画人工隔层压降、最佳铺设位置、厚度和最佳用量。
2
The pressure vessel is the third barrier to radioactive material release.
高压管是放射材料的第三道防护。
3
This social psychological characteristics of people pressure, increased psychological barrier.