Combining with the quality control level of high-quality magnetic iron of Taigang and the test methods of magnetic aging, improving process of artificial aging was put forward.
阐述了电磁纯铁的磁时效现象及其机理，并结合太钢无磁时效优质电磁纯铁的质量控制水平和磁时效检验方法，提出了人工时效处理的改进工艺。
The aging process of mullite short fibre reinforced ZL109 composites was studied via hardness test.
通过测试硬度的方法，对莫来石短纤维增强ZL 109复合材料的时效析出行为进行了研究。
In addition the company's testing equipment, strict inspection procedures, production process must be the product aging test for product quality to provide a reliable guarantee.
另外公司的检测设备齐全，检验规程严密，生产过程必须对产品进行老化试验，为产品质量提供了可靠保障。
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