Regular method used to evaluate the result of cathodic protection at pipeline specific parts often caused deviation and left some hidden troubles to safety operation.
在管道特殊部位，采用常规方法评估阴极保护效果往往产生偏差，给安全运行留下隐患。
2
The expansion of the downward main wave scope and the left axis deviation proved to have the same cause.
引起主波向下范围扩大与导致电轴左偏的病因基本相同。
3
At the lower belt upward direction is the deviation of the roller group should move to the left, move right upper supporting roller group.