From the sealing structure, it is similar to multi - layer cylindrical wall.
从其结构上看，它相当于多层圆筒壁的传热。
2
As the glass bulb has a thick wall, it was multi-layer meshed so that the element distortion was minimized and hence enhance the accuracy of the results obtained.
由于玻壳有一厚壁，它被化分成多层网格以减小单元误差，提高结果的精度。
3
The article analyse the crack leakage cause of cylinder of high pressure ammonia separator. And measures has been taken to the through wall flaw of multi-layer wrapped vessel in the paper.