The metallographic structure of melted mark was observed and metallographic structure with secondary short circuited melted mark and primary short circuited melted mark was found. 利用金相显微镜对火烧熔珠的金相组织进行观察,发现铜导线火烧熔痕在不同温度下经消防射水冷却后,会出现类似一次短路和二次短路熔痕的金相组织。
We then put the six primary competency indicators and 21 secondary competency indicators in the corresponding position in the model, and mark the corresponding weights. 3. 把6个胜任特征群和21项胜任特征素质放入相应位置,标出相应权重。