This method of manufacture evolved out of a long process of trial.
这种制造方法是在长期试验过程中逐步形成的。
This paper mainly talks about the process trial, study and manufacture of phenolic FRP products with the property of anti-static electricity used in coal mine.
本文主要介绍供煤矿井下需要的防静电酚醛玻璃钢制品的工艺试验、研究及生产。
Process parameters were determined through the trial production for the manufacture of cement clinker by using the sludge of Suzhou river.
通过工业试烧确定了利用苏州河底泥生产水泥熟料的工艺参数,并对熟料及其水泥的性能进行了分析。
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