Start with reaction process control and material quality analysis, various factors that have effect on the quality of polyester product are analysized and discussed.
从反应过程控制及原料质量分析两方面入手，对影响聚酯产品质量的诸多因素进行了详细的分析讨论。
Adjustable "Crater" control - Gives the operator control over welding conditions at the start and end of welds for improved weld quality.
可连续调节的收弧控制——在任何焊接条件下收弧均能获得高质量的焊缝。
From construction start to acceptance monitoring the process control of engineering quality is important and key link.
重点论述了施工过程的策划和控制，即从开工到竣工验收是工程质量过程控制的重点和关键环节。
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