probability law概率律,机率律,几率律probabilityn.可能性；【数】或然率；机率；【统计】概率，概率论probability change points概率变点probability and statistic概率与统计probability matrix system概率矩阵系统probability of lightening雷击概率probability risk analysis概率风险分析probability of scattering散射概率probability of nonfailure无故障概率probability of engagement占线概率probability of occurrence出现概率,事件概率probability of ionization电离概率