Start the welding process and visually control it by observing the melt penetrating out of the two indicators.

开始真正操作进行熔接加工时，要留心深入的观察两个指示器。

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What are your KEY PERFORMANCE MEASURES or INDICATORS and in-process MEASURES used for the control and improvement of your work PROCESSES?

用于控制和改进工作过程的关键绩效测量项目、指标以及过程测量项目是什么？

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