Shorter ARC durations ultimately mean less contacts burning, resulting in less maintenance and a better breaker.
归根结底，电弧持续时间越短，触头越不易烧熔，维修量越少，而断路器性能越好。
And it also introduces the basic principle and structure, operation and maintenance, common problems, troubleshooting and solutions of MZE-630 automatic submerged arc welding machine.
介绍了MZE - 630埋弧自动焊机的基本原理与结构，焊机操作与维护，焊机常见故障、产生原因和排除方法。
Streamline appearance with 3D design, green arc glass to see the operation and easy maintenance.
外观采用流线型圆弧加立体三维设计，绿色圆弧玻璃，美观大方，带有视窗，方便维护和操作。
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