网络 防爆操作柱; 莲必治注射液; 脆性区; lbz
And preheat is advantage to reduce LBZ, and decreasing character temperature T1 and T3 are also helpful to prevent the happening of LBZ.
预热也有利于减少L BZ;另外,降低特征温度t1和提高特征温度t3也有利于预防l BZ。