What has cut the crack and expanded further has blown up simulation number value to calculate, expand the function played on the crack after verifying the main powder bag.
进行了切割裂隙进一步扩展的爆破模拟数值计算，验证了主药包对裂缝扩展所起的作用。
2
It is pointed out that the source of crack is formed during the fast heating process and expanded following the fast cooling process.
即裂纹源产生于快速加热过程并在随后的快速冷却中得以扩展。
3
Thermal insulation polymer mortar technically solves problems of normal expanded perlite cement mortar such as easy to absorb water and to crack thus extends its application area.