The relation between stress-strain and density variation of rock crack has been obtained through the meso-damage theory and damagestatistics model.
把细观损伤理论和宏观统计损伤模型结合，建立应力–应变与微裂纹密度变化的关系；
2
Risky use of alcohol causes diverse social damage and economic costs, most of which are not reflected in the alcohol-related disease statistics.
危险使用酒精会导致各种社会破坏与经济代价，其中大部分在与酒精有关疾病的统计中并未反映出来。
3
This function can record the maintenance condition of the road and bridge, check the damage condition of the road and other structures and show the inquire result and statistics.